 | 1932 | 1933 | 1934 |  |
Date | Country | Change |
| 1933 |  Albania | Titular Episcopal See of Amantia was restored |
| 1933 | Albania | Titular Episcopal See of Arbanum was restored |
| 1933 | Albania | Titular Episcopal See of Aulon was renamed as Titular Episcopal See of Aulon |
| 1933 | Albania | Titular Episcopal See of Balecium was restored |
| 1933 | Albania | Titular Episcopal See of Buthrotum was restored |
| 1933 | Albania | Titular Episcopal See of Chunavia was restored |
| 1933 | Albania | Titular Episcopal See of Croæ was renamed as Titular Episcopal See of Croæ |
| 1933 | Albania | Titular Episcopal See of Dagnum was restored |
| 1933 | Albania | Titular Episcopal See of Drivastum was restored |
| 1933 | Albania | Titular Episcopal See of Glavinitza was established |
| 1933 | Albania | Titular Episcopal See of Hadrianopolis in Epiro was restored |
| 1933 | Albania | Titular Episcopal See of Lestrona was restored |
| 1933 | Albania | Titular Episcopal See of Onchesmus was restored |
| 1933 | Albania | Titular Episcopal See of Phœnice was restored |
| 1933 | Albania | Titular Episcopal See of Pulcheriopolis was established |
| 1933 | Albania | Titular Episcopal See of Sarda was restored |
| 1933 | Albania | Titular Episcopal See of Scampa was restored |
| 1933 | Albania | Titular Episcopal See of Stephaniacum was restored |
| 1933 |  Algeria | Titular Episcopal See of Acufida was established |
| 1933 | Algeria | Titular Episcopal See of Ala miliaria was established |
| 1933 | Algeria | Titular Episcopal See of Alba was established |
| 1933 | Algeria | Titular Episcopal See of Albulæ was established |
| 1933 | Algeria | Titular Episcopal See of Altava was established |
| 1933 | Algeria | Titular Episcopal See of Amaura was established |
| 1933 | Algeria | Titular Episcopal See of Ambia was established |
| 1933 | Algeria | Titular Episcopal See of Ampora was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ Albæ in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ Sirenses was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ Thibilitanæ was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Aquæ novæ in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Arena was established |
| 1933 | Algeria | Titular Episcopal See of Arsacal was established |
| 1933 | Algeria | Titular Episcopal See of Arsennaria was established |
| 1933 | Algeria | Titular Episcopal See of Aræ in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Assava was established |
| 1933 | Algeria | Titular Episcopal See of Asuoremixta was established |
| 1933 | Algeria | Titular Episcopal See of Augurus was established |
| 1933 | Algeria | Titular Episcopal See of Ausuccura was established |
| 1933 | Algeria | Titular Episcopal See of Auzia was restored |
| 1933 | Algeria | Titular Episcopal See of Azura was established |
| 1933 | Algeria | Titular Episcopal See of Babra was established |
| 1933 | Algeria | Titular Episcopal See of Bacanaria was established |
| 1933 | Algeria | Titular Episcopal See of Badiæ was established |
| 1933 | Algeria | Titular Episcopal See of Bagai was restored |
| 1933 | Algeria | Titular Episcopal See of Baia was established |
| 1933 | Algeria | Titular Episcopal See of Baliana was established |
| 1933 | Algeria | Titular Episcopal See of Bamaccora was established |
| 1933 | Algeria | Titular Episcopal See of Bapara was established |
| 1933 | Algeria | Titular Episcopal See of Barica was established |
| 1933 | Algeria | Titular Episcopal See of Belesasa was established |
| 1933 | Algeria | Titular Episcopal See of Benepota was established |
| 1933 | Algeria | Titular Episcopal See of Betagbara was established |
| 1933 | Algeria | Titular Episcopal See of Bocconia was established |
| 1933 | Algeria | Titular Episcopal See of Buffada was established |
| 1933 | Algeria | Titular Episcopal See of Burca was established |
| 1933 | Algeria | Titular Episcopal See of Caltadria was established |
| 1933 | Algeria | Titular Episcopal See of Capra was established |
| 1933 | Algeria | Titular Episcopal See of Capsus was established |
| 1933 | Algeria | Titular Episcopal See of Caput Cilla was established |
| 1933 | Algeria | Titular Episcopal See of Castellum Iabar was established |
| 1933 | Algeria | Titular Episcopal See of Castellum Ripæ was established |
| 1933 | Algeria | Titular Episcopal See of Castellum Tatroportus was established |
| 1933 | Algeria | Titular Episcopal See of Castellum Tingitii was established |
| 1933 | Algeria | Titular Episcopal See of Castellum in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Castellum in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Castellum medianum was established |
| 1933 | Algeria | Titular Episcopal See of Castellum minus was established |
| 1933 | Algeria | Titular Episcopal See of Castra Galbæ was established |
| 1933 | Algeria | Titular Episcopal See of Castra nova was established |
| 1933 | Algeria | Titular Episcopal See of Castra severiana was established |
| 1933 | Algeria | Titular Episcopal See of Casæ Calanæ was established |
| 1933 | Algeria | Titular Episcopal See of Casæ in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Casæ medianæ was established |
| 1933 | Algeria | Titular Episcopal See of Casæ nigræ was established |
| 1933 | Algeria | Titular Episcopal See of Catabum castra was established |
| 1933 | Algeria | Titular Episcopal See of Cataquas was established |
| 1933 | Algeria | Titular Episcopal See of Catula was established |
| 1933 | Algeria | Titular Episcopal See of Cedamusa was established |
| 1933 | Algeria | Titular Episcopal See of Cediæ was established |
| 1933 | Algeria | Titular Episcopal See of Celerina was established |
| 1933 | Algeria | Titular Episcopal See of Cellæ in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Cemerinianus was established |
| 1933 | Algeria | Titular Episcopal See of Centuriones was established |
| 1933 | Algeria | Titular Episcopal See of Ceramussa was established |
| 1933 | Algeria | Titular Episcopal See of Cæsarea was renamed as Titular Episcopal See of Cesarea in Mauretania |
| 1933 | Algeria | Titular Episcopal See of Cesarea in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Chullu was established |
| 1933 | Algeria | Titular Episcopal See of Cissi was established |
| 1933 | Algeria | Titular Episcopal See of Columnata was established |
| 1933 | Algeria | Titular Episcopal See of Corniculana was established |
| 1933 | Algeria | Titular Episcopal See of Cuicul was established |
| 1933 | Algeria | Titular Episcopal See of Cæsariana was established |
| 1933 | Algeria | Titular Episcopal See of Cœliana was established |
| 1933 | Algeria | Titular Episcopal See of Diana was established |
| 1933 | Algeria | Titular Episcopal See of Elephantaria in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Eminentiana was established |
| 1933 | Algeria | Titular Episcopal See of Equizetum was established |
| 1933 | Algeria | Titular Episcopal See of Fallaba was established |
| 1933 | Algeria | Titular Episcopal See of Fata was established |
| 1933 | Algeria | Titular Episcopal See of Ficus was established |
| 1933 | Algeria | Titular Episcopal See of Fidoloma was established |
| 1933 | Algeria | Titular Episcopal See of Flenucleta was established |
| 1933 | Algeria | Titular Episcopal See of Floriana was established |
| 1933 | Algeria | Titular Episcopal See of Flumenpiscense was established |
| 1933 | Algeria | Titular Episcopal See of Flumenzer was established |
| 1933 | Algeria | Titular Episcopal See of Forma was established |
| 1933 | Algeria | Titular Episcopal See of Fronta was established |
| 1933 | Algeria | Titular Episcopal See of Gadiaufala was established |
| 1933 | Algeria | Titular Episcopal See of Gaudiaba was established |
| 1933 | Algeria | Titular Episcopal See of Gauriana was established |
| 1933 | Algeria | Titular Episcopal See of Gegi was restored |
| 1933 | Algeria | Titular Episcopal See of Gemellæ in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Germania in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Gilba was established |
| 1933 | Algeria | Titular Episcopal See of Giru Marcelli was established |
| 1933 | Algeria | Titular Episcopal See of Giru Mons was established |
| 1933 | Algeria | Titular Episcopal See of Girus was established |
| 1933 | Algeria | Titular Episcopal See of Girus Tarasii was established |
| 1933 | Algeria | Titular Episcopal See of Gunugus was established |
| 1933 | Algeria | Titular Episcopal See of Guzabeta was established |
| 1933 | Algeria | Titular Episcopal See of Gypsaria was established |
| 1933 | Algeria | Titular Episcopal See of Horrea was established |
| 1933 | Algeria | Titular Episcopal See of Horrea Aninici was established |
| 1933 | Algeria | Titular Episcopal See of Hospita was established |
| 1933 | Algeria | Titular Episcopal See of Ida in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Idassa was established |
| 1933 | Algeria | Titular Episcopal See of Idicra was established |
| 1933 | Algeria | Titular Episcopal See of Igilgili was established |
| 1933 | Algeria | Titular Episcopal See of Ita was established |
| 1933 | Algeria | Titular Episcopal See of Iziriana was established |
| 1933 | Algeria | Titular Episcopal See of Izirzada was established |
| 1933 | Algeria | Titular Episcopal See of Jerafi was established |
| 1933 | Algeria | Titular Episcopal See of Jomnium was restored |
| 1933 | Algeria | Titular Episcopal See of Jucundiana was established |
| 1933 | Algeria | Titular Episcopal See of Junca in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Lamasba was established |
| 1933 | Algeria | Titular Episcopal See of Lambiridi was established |
| 1933 | Algeria | Titular Episcopal See of Lambæsis was renamed as Titular Episcopal See of Lambæsis |
| 1933 | Algeria | Titular Episcopal See of Lamdia was established |
| 1933 | Algeria | Titular Episcopal See of Lamiggiga was established |
| 1933 | Algeria | Titular Episcopal See of Lamphua was established |
| 1933 | Algeria | Titular Episcopal See of Lamsorti was established |
| 1933 | Algeria | Titular Episcopal See of Lamzella was established |
| 1933 | Algeria | Titular Episcopal See of Lari Castellum was established |
| 1933 | Algeria | Titular Episcopal See of Legio was renamed as Titular Episcopal See of Legia |
| 1933 | Algeria | Titular Episcopal See of Legis Volumni was established |
| 1933 | Algeria | Titular Episcopal See of Lemellefa was established |
| 1933 | Algeria | Titular Episcopal See of Lemfocta was established |
| 1933 | Algeria | Titular Episcopal See of Lesvi was renamed as Titular Episcopal See of Lesvi |
| 1933 | Algeria | Titular Episcopal See of Liberalia was established |
| 1933 | Algeria | Titular Episcopal See of Limata was established |
| 1933 | Algeria | Titular Episcopal See of Lugura was established |
| 1933 | Algeria | Titular Episcopal See of Macomades was established |
| 1933 | Algeria | Titular Episcopal See of Macomades rusticiana was established |
| 1933 | Algeria | Titular Episcopal See of Macri was renamed as Titular Episcopal See of Macri |
| 1933 | Algeria | Titular Episcopal See of Macriana in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Madaurus was renamed as Titular Episcopal See of Madaurus |
| 1933 | Algeria | Titular Episcopal See of Mades was established |
| 1933 | Algeria | Titular Episcopal See of Magarmel was established |
| 1933 | Algeria | Titular Episcopal See of Maiuca was established |
| 1933 | Algeria | Titular Episcopal See of Malliana was established |
| 1933 | Algeria | Titular Episcopal See of Manaccenser was established |
| 1933 | Algeria | Titular Episcopal See of Maronana was established |
| 1933 | Algeria | Titular Episcopal See of Mascula was established |
| 1933 | Algeria | Titular Episcopal See of Masuccaba was established |
| 1933 | Algeria | Titular Episcopal See of Mathara in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Maturba was established |
| 1933 | Algeria | Titular Episcopal See of Maura was established |
| 1933 | Algeria | Titular Episcopal See of Mauriana was established |
| 1933 | Algeria | Titular Episcopal See of Maximiana was renamed as Titular Episcopal See of Maximiana in Numidia |
| 1933 | Algeria | Titular Episcopal See of Maxita was established |
| 1933 | Algeria | Titular Episcopal See of Mazaca was established |
| 1933 | Algeria | Titular Episcopal See of Media was established |
| 1933 | Algeria | Titular Episcopal See of Medianas Zabuniorum was established |
| 1933 | Algeria | Titular Episcopal See of Mesarfelta was established |
| 1933 | Algeria | Titular Episcopal See of Meta was established |
| 1933 | Algeria | Titular Episcopal See of Molicunza was established |
| 1933 | Algeria | Titular Episcopal See of Mons in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Mons in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Mopta was established |
| 1933 | Algeria | Titular Episcopal See of Moxori was established |
| 1933 | Algeria | Titular Episcopal See of Municipa was established |
| 1933 | Algeria | Titular Episcopal See of Murustaga was established |
| 1933 | Algeria | Titular Episcopal See of Muteci was established |
| 1933 | Algeria | Titular Episcopal See of Mutugenna was established |
| 1933 | Algeria | Titular Episcopal See of Nabala was established |
| 1933 | Algeria | Titular Episcopal See of Naratcata was established |
| 1933 | Algeria | Titular Episcopal See of Nasai was established |
| 1933 | Algeria | Titular Episcopal See of Nasbinca was established |
| 1933 | Algeria | Titular Episcopal See of Nebbi was established |
| 1933 | Algeria | Titular Episcopal See of Nicives was established |
| 1933 | Algeria | Titular Episcopal See of Nigizubi was established |
| 1933 | Algeria | Titular Episcopal See of Nigræ maiores was established |
| 1933 | Algeria | Titular Episcopal See of Noba was established |
| 1933 | Algeria | Titular Episcopal See of Nova Cæsaris was established |
| 1933 | Algeria | Titular Episcopal See of Nova Germania was established |
| 1933 | Algeria | Titular Episcopal See of Nova Petra was established |
| 1933 | Algeria | Titular Episcopal See of Nova Sinna was established |
| 1933 | Algeria | Titular Episcopal See of Nova Sparsa was established |
| 1933 | Algeria | Titular Episcopal See of Nova barbara was established |
| 1933 | Algeria | Titular Episcopal See of Novaliciana was established |
| 1933 | Algeria | Titular Episcopal See of Novica was established |
| 1933 | Algeria | Titular Episcopal See of Numida was established |
| 1933 | Algeria | Titular Episcopal See of Obbi was established |
| 1933 | Algeria | Titular Episcopal See of Obori was established |
| 1933 | Algeria | Titular Episcopal See of Octava was established |
| 1933 | Algeria | Titular Episcopal See of Oliva was established |
| 1933 | Algeria | Titular Episcopal See of Oppidum novum was established |
| 1933 | Algeria | Titular Episcopal See of Panatoria was established |
| 1933 | Algeria | Titular Episcopal See of Parthenia was established |
| 1933 | Algeria | Titular Episcopal See of Pauzera was established |
| 1933 | Algeria | Titular Episcopal See of Perdices was established |
| 1933 | Algeria | Titular Episcopal See of Pomaria was renamed as Titular Episcopal See of Pomaria |
| 1933 | Algeria | Titular Episcopal See of Privata was established |
| 1933 | Algeria | Titular Episcopal See of Pudentiana was established |
| 1933 | Algeria | Titular Episcopal See of Putia in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Quiza was established |
| 1933 | Algeria | Titular Episcopal See of Rapidum was established |
| 1933 | Algeria | Titular Episcopal See of Regiana was established |
| 1933 | Algeria | Titular Episcopal See of Regiæ was established |
| 1933 | Algeria | Titular Episcopal See of Reperi was established |
| 1933 | Algeria | Titular Episcopal See of Respecta was established |
| 1933 | Algeria | Titular Episcopal See of Ressiana was established |
| 1933 | Algeria | Titular Episcopal See of Rotaria was established |
| 1933 | Algeria | Titular Episcopal See of Rusadus was renamed as Titular Episcopal See of Rusadus |
| 1933 | Algeria | Titular Episcopal See of Rusguniæ was restored |
| 1933 | Algeria | Titular Episcopal See of Rusibisir was established |
| 1933 | Algeria | Titular Episcopal See of Rusticiana was established |
| 1933 | Algeria | Titular Episcopal See of Rusubbicari was established |
| 1933 | Algeria | Titular Episcopal See of Rusuccuru was established |
| 1933 | Algeria | Titular Episcopal See of Saldæ was established |
| 1933 | Algeria | Titular Episcopal See of Satafi was established |
| 1933 | Algeria | Titular Episcopal See of Satafis was established |
| 1933 | Algeria | Titular Episcopal See of Seleuciana was established |
| 1933 | Algeria | Titular Episcopal See of Sereddeli was established |
| 1933 | Algeria | Titular Episcopal See of Serta was established |
| 1933 | Algeria | Titular Episcopal See of Sertei was established |
| 1933 | Algeria | Titular Episcopal See of Sesta was established |
| 1933 | Algeria | Titular Episcopal See of Sfasferia was established |
| 1933 | Algeria | Titular Episcopal See of Siccesi was established |
| 1933 | Algeria | Titular Episcopal See of Sigus was established |
| 1933 | Algeria | Titular Episcopal See of Silli was established |
| 1933 | Algeria | Titular Episcopal See of Sinitis was established |
| 1933 | Algeria | Titular Episcopal See of Sinnada in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Sistroniana was established |
| 1933 | Algeria | Titular Episcopal See of Sita was established |
| 1933 | Algeria | Titular Episcopal See of Socia was established |
| 1933 | Algeria | Titular Episcopal See of Suava was established |
| 1933 | Algeria | Titular Episcopal See of Subbar was established |
| 1933 | Algeria | Titular Episcopal See of Sucarda was established |
| 1933 | Algeria | Titular Episcopal See of Sufar was established |
| 1933 | Algeria | Titular Episcopal See of Sufasar was established |
| 1933 | Algeria | Titular Episcopal See of Summa was established |
| 1933 | Algeria | Titular Episcopal See of Summula was established |
| 1933 | Algeria | Titular Episcopal See of Surista was established |
| 1933 | Algeria | Titular Episcopal See of Tabaicara was established |
| 1933 | Algeria | Titular Episcopal See of Tabla was established |
| 1933 | Algeria | Titular Episcopal See of Taborenta was established |
| 1933 | Algeria | Titular Episcopal See of Tabuda was established |
| 1933 | Algeria | Titular Episcopal See of Tabunia was established |
| 1933 | Algeria | Titular Episcopal See of Tadamata was renamed as Titular Episcopal See of Tadamata |
| 1933 | Algeria | Titular Episcopal See of Tamada was established |
| 1933 | Algeria | Titular Episcopal See of Tamagrista was established |
| 1933 | Algeria | Titular Episcopal See of Tamallula was established |
| 1933 | Algeria | Titular Episcopal See of Tamascani was established |
| 1933 | Algeria | Titular Episcopal See of Tamazuca was established |
| 1933 | Algeria | Titular Episcopal See of Tanaramusa was established |
| 1933 | Algeria | Titular Episcopal See of Tarasa in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Tatilti was established |
| 1933 | Algeria | Titular Episcopal See of Teglata in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Thagora was renamed as Titular Episcopal See of Thagora |
| 1933 | Algeria | Titular Episcopal See of Thamugadi was established |
| 1933 | Algeria | Titular Episcopal See of Thiava was established |
| 1933 | Algeria | Titular Episcopal See of Thibilis was established |
| 1933 | Algeria | Titular Episcopal See of Thibuzabetum was established |
| 1933 | Algeria | Titular Episcopal See of Thinisa in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Thubunæ was renamed as Titular Episcopal See of Thubunæ in Numidia |
| 1933 | Algeria | Titular Episcopal See of Thubursicum was established |
| 1933 | Algeria | Titular Episcopal See of Thucca in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Thucca in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Tigamibena was established |
| 1933 | Algeria | Titular Episcopal See of Tigava was established |
| 1933 | Algeria | Titular Episcopal See of Tigillava was established |
| 1933 | Algeria | Titular Episcopal See of Tigisi in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Tigisi in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Timici was established |
| 1933 | Algeria | Titular Episcopal See of Timidana was established |
| 1933 | Algeria | Titular Episcopal See of Tingaria was established |
| 1933 | Algeria | Titular Episcopal See of Tinista was established |
| 1933 | Algeria | Titular Episcopal See of Tipasa was renamed as Titular Episcopal See of Tipasa in Mauretania |
| 1933 | Algeria | Titular Episcopal See of Tipasa was renamed as Titular Episcopal See of Tipasa in Numidia |
| 1933 | Algeria | Titular Episcopal See of Tisedi was established |
| 1933 | Algeria | Titular Episcopal See of Tituli in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Tubia was established |
| 1933 | Algeria | Titular Episcopal See of Tubunæ in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Tubusuptu was established |
| 1933 | Algeria | Titular Episcopal See of Tullia was established |
| 1933 | Algeria | Titular Episcopal See of Turres Ammeniæ was established |
| 1933 | Algeria | Titular Episcopal See of Turres Concordiæ was established |
| 1933 | Algeria | Titular Episcopal See of Turres in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Turris in Mauretania was established |
| 1933 | Algeria | Titular Episcopal See of Turris rotunda was established |
| 1933 | Algeria | Titular Episcopal See of Ubaba was established |
| 1933 | Algeria | Titular Episcopal See of Usinaza was established |
| 1933 | Algeria | Titular Episcopal See of Vadesi was established |
| 1933 | Algeria | Titular Episcopal See of Vagada was established |
| 1933 | Algeria | Titular Episcopal See of Vagal was established |
| 1933 | Algeria | Titular Episcopal See of Vageata was established |
| 1933 | Algeria | Titular Episcopal See of Vagrauta was established |
| 1933 | Algeria | Titular Episcopal See of Vamalla was established |
| 1933 | Algeria | Titular Episcopal See of Vanariona was established |
| 1933 | Algeria | Titular Episcopal See of Vannida was established |
| 1933 | Algeria | Titular Episcopal See of Vardimissa was established |
| 1933 | Algeria | Titular Episcopal See of Vegesela in Numidia was established |
| 1933 | Algeria | Titular Episcopal See of Velefi was established |
| 1933 | Algeria | Titular Episcopal See of Verrona was established |
| 1933 | Algeria | Titular Episcopal See of Vescera was established |
| 1933 | Algeria | Titular Episcopal See of Vicus Cæsaris was established |
| 1933 | Algeria | Titular Episcopal See of Vicus Pacati was established |
| 1933 | Algeria | Titular Episcopal See of Villa nova was established |
| 1933 | Algeria | Titular Episcopal See of Villa regis was established |
| 1933 | Algeria | Titular Episcopal See of Vissalsa was established |
| 1933 | Algeria | Titular Episcopal See of Voncaria was established |
| 1933 | Algeria | Titular Episcopal See of Voncariana was established |
| 1933 | Algeria | Titular Episcopal See of Vulturia was established |
| 1933 | Algeria | Titular Episcopal See of Zaba was established |
| 1933 | Algeria | Titular Episcopal See of Zallata was established |
| 1933 | Algeria | Titular Episcopal See of Zucchabar was established |
| 1933 |  Bosnia and Herzegovina | Titular Episcopal See of Bela was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Chimæra was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Cozyla was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Horæa was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Moglæna was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Morosbisdus was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Rhasus was established |
| 1933 | Bosnia and Herzegovina | Titular Episcopal See of Tzernicus was established |
| 1933 |  Bulgaria | Titular Episcopal See of Bononia was established |
| 1933 | Bulgaria | Titular Episcopal See of Bucellus was established |
| 1933 | Bulgaria | Titular Episcopal See of Castra Martis was established |
| 1933 | Bulgaria | Titular Episcopal See of Deultum was established |
| 1933 | Bulgaria | Titular Episcopal See of Dorostorum was established |
| 1933 | Bulgaria | Titular Episcopal See of Germania in Dacia was established |
| 1933 | Bulgaria | Titular Episcopal See of Margum was established |
| 1933 | Bulgaria | Titular Episcopal See of Nicopolis ad Iaterum was established |
| 1933 | Bulgaria | Titular Episcopal See of Novæ was established |
| 1933 | Bulgaria | Titular Metropolitan See of Philippopolis was renamed as Titular Metropolitan See of Philippopolis in Thracia |
| 1933 | Bulgaria | Titular Episcopal See of Sozopolis was renamed as Titular Episcopal See of Sozopolis in Hæmimonto |
| 1933 | Bulgaria | Titular Metropolitan See of Ternobus was established |
| 1933 | Bulgaria | Titular Episcopal See of Transmarisca was established |
| 1933 | Bulgaria | Titular Metropolitan See of Velebusdus was established |
| 1933 | Bulgaria | Titular Episcopal See of Œscus was established |
| 1933 |  Croatia | Titular Episcopal See of Arba was restored |
| 1933 | Croatia | Titular Episcopal See of Tinum was renamed as Titular Episcopal See of Knin |
| 1933 | Croatia | Titular Episcopal See of Korčula was restored |
| 1933 | Croatia | Titular Episcopal See of Narona was restored |
| 1933 | Croatia | Titular Episcopal See of Nin was restored |
| 1933 | Croatia | Titular Episcopal See of Osor was restored |
| 1933 | Croatia | Titular Episcopal See of Otočac was restored |
| 1933 | Croatia | Titular Episcopal See of Skradin was restored |
| 1933 | Croatia | Titular Episcopal See of Ston was restored |
| 1933 | Croatia | Titular Episcopal See of Trogir was restored |
| 1933 |  Cyprus | Titular Episcopal See of Amathus was renamed as Titular Episcopal See of Amathus in Cypro |
| 1933 | Cyprus | Titular Episcopal See of Arsinoë in Cypro was established |
| 1933 | Cyprus | Titular Episcopal See of Cerynia was established |
| 1933 | Cyprus | Titular Episcopal See of Chytri was renamed as Titular Episcopal See of Chytri |
| 1933 | Cyprus | Titular Episcopal See of Citium was established |
| 1933 | Cyprus | Titular Episcopal See of Famagosta was renamed as Titular Episcopal See of Famagusta |
| 1933 | Cyprus | Titular Episcopal See of Lapithus was established |
| 1933 | Cyprus | Titular Episcopal See of Neapolis in Cypro was restored |
| 1933 | Cyprus | Titular Episcopal See of Tamasus was renamed as Titular Episcopal See of Tamasus |
| 1933 |  Egypt | Titular Episcopal See of Agnus was established |
| 1933 | Egypt | Titular Episcopal See of Alphocranon was established |
| 1933 | Egypt | Titular Episcopal See of Andropolis was established |
| 1933 | Egypt | Titular Episcopal See of Aphnæum was established |
| 1933 | Egypt | Titular Episcopal See of Apollonopolis magna was established |
| 1933 | Egypt | Titular Episcopal See of Apollonopolis parva was established |
| 1933 | Egypt | Titular Episcopal See of Arabia was established |
| 1933 | Egypt | Titular Episcopal See of Arsinoë was renamed as Titular Episcopal See of Arsinoë in Arcadia |
| 1933 | Egypt | Titular Episcopal See of Babylon was established |
| 1933 | Egypt | Titular Episcopal See of Butus was established |
| 1933 | Egypt | Titular Archiepiscopal See of Cabasa was demoted as Titular Episcopal See of Cabasa |
| 1933 | Egypt | Titular Episcopal See of Coprithis was established |
| 1933 | Egypt | Titular Episcopal See of Cynopolis was renamed as Titular Episcopal See of Cynopolis in Arcadia |
| 1933 | Egypt | Titular Episcopal See of Cynopolis in Ægypto was established |
| 1933 | Egypt | Titular Episcopal See of Diocletianoplis in Thebaide was established |
| 1933 | Egypt | Titular Episcopal See of Diospolis inferior was established |
| 1933 | Egypt | Titular Episcopal See of Diospolis superior was established |
| 1933 | Egypt | Titular Episcopal See of Geras was renamed as Titular Episcopal See of Geras |
| 1933 | Egypt | Titular Episcopal See of Heliopolis in Augustamnica was established |
| 1933 | Egypt | Titular Episcopal See of Heracleopolis magna was established |
| 1933 | Egypt | Titular Episcopal See of Hermonthis was established |
| 1933 | Egypt | Titular Episcopal See of Hypselis was established |
| 1933 | Egypt | Titular Episcopal See of Iotapa in Palestina was established |
| 1933 | Egypt | Titular Episcopal See of Latopolis was established |
| 1933 | Egypt | Titular Metropolitan See of Leontopolis was renamed as Titular Metropolitan See of Leontopolis in Augustamnica |
| 1933 | Egypt | Titular Episcopal See of Mareotes was established |
| 1933 | Egypt | Titular Episcopal See of Massimianopolis in Thebaide was established |
| 1933 | Egypt | Titular Episcopal See of Menelaites was established |
| 1933 | Egypt | Titular Episcopal See of Metelis was established |
| 1933 | Egypt | Titular Episcopal See of Naucratis was established |
| 1933 | Egypt | Titular Episcopal See of Nicius was established |
| 1933 | Egypt | Titular Episcopal See of Oasis magna was established |
| 1933 | Egypt | Titular Episcopal See of Ombi was renamed as Titular Episcopal See of Ombi |
| 1933 | Egypt | Titular Episcopal See of Onuphis was established |
| 1933 | Egypt | Titular Episcopal See of Pachnemunis was established |
| 1933 | Egypt | Titular Episcopal See of Panephysis was established |
| 1933 | Egypt | Titular Episcopal See of Petra in Ægypto was established |
| 1933 | Egypt | Titular Episcopal See of Pharan was established |
| 1933 | Egypt | Titular Episcopal See of Phelbes was established |
| 1933 | Egypt | Titular Episcopal See of Philæ was established |
| 1933 | Egypt | Titular Episcopal See of Phragonis was established |
| 1933 | Egypt | Titular Episcopal See of Pselchis was established |
| 1933 | Egypt | Titular Metropolitan See of Ptolemais was renamed as Titular Metropolitan See of Ptolemais in Thebaide |
| 1933 | Egypt | Titular Episcopal See of Sais was established |
| 1933 | Egypt | Titular Episcopal See of Schedia was established |
| 1933 | Egypt | Titular Episcopal See of Sebennytus was established |
| 1933 | Egypt | Titular Episcopal See of Sela was renamed as Titular Episcopal See of Sela |
| 1933 | Egypt | Titular Episcopal See of Sethroë was established |
| 1933 | Egypt | Titular Episcopal See of Taua was established |
| 1933 | Egypt | Titular Episcopal See of Thebæ was renamed as Titular Episcopal See of Tebe di Tebaide |
| 1933 | Egypt | Titular Episcopal See of Tentyris was renamed as Titular Episcopal See of Tentyris |
| 1933 | Egypt | Titular Episcopal See of Theodosiopolis was renamed as Titular Episcopal See of Theodosiopolis in Arcadia |
| 1933 | Egypt | Titular Episcopal See of Thinis was established |
| 1933 | Egypt | Titular Episcopal See of Thois was established |
| 1933 | Egypt | Titular Episcopal See of Xois was established |
| 1933 | Egypt | Titular Episcopal See of Zygris was established |
| 1933 |  Georgia | Titular Episcopal See of Petra in Lazica was established |
| 1933 | Georgia | Titular Episcopal See of Rhodopolis was established |
| 1933 | Georgia | Titular Archiepiscopal See of Sebastopolis in Abasgia was established |
| 1933 | Georgia | Titular Episcopal See of Sæsina was established |
| 1933 | Georgia | Titular Episcopal See of Zygana was established |
| 1933 |  Germany | Diocese of Trier lost territory to Diocese of Limburg |
| 1933 |  Greece | Titular Episcopal See of Achelous was established |
| 1933 | Greece | Titular Episcopal See of Amphipolis was established |
| 1933 | Greece | Titular Episcopal See of Anastasiopolis was restored |
| 1933 | Greece | Titular Episcopal See of Arcadia was restored |
| 1933 | Greece | Titular Episcopal See of Ardamerium was established |
| 1933 | Greece | Titular Episcopal See of Astypalæa was established |
| 1933 | Greece | Titular Episcopal See of Aulon was restored |
| 1933 | Greece | Titular Episcopal See of Aëtus was established |
| 1933 | Greece | Titular Episcopal See of Berrhœa was established |
| 1933 | Greece | Titular Episcopal See of Bonitza was established |
| 1933 | Greece | Titular Episcopal See of Campania was established |
| 1933 | Greece | Titular Episcopal See of Cantanus was established |
| 1933 | Greece | Titular Episcopal See of Cardicium was renamed as Titular Episcopal See of Cardicium |
| 1933 | Greece | Titular Episcopal See of Cea was restored |
| 1933 | Greece | Titular Episcopal See of Cesarea in Thessalia was established |
| 1933 | Greece | Titular Episcopal See of Chersonesus was renamed as Titular Episcopal See of Chersonesus in Creta |
| 1933 | Greece | Titular Episcopal See of Christianopolis was established |
| 1933 | Greece | Titular Episcopal See of Christopolis was established |
| 1933 | Greece | Titular Episcopal See of Chrysopolis was renamed as Titular Episcopal See of Chrysopolis in Macedonia |
| 1933 | Greece | Titular Episcopal See of Ciparissia was established |
| 1933 | Greece | Titular Episcopal See of Cnossus was restored |
| 1933 | Greece | Titular Episcopal See of Coronea was restored |
| 1933 | Greece | Titular Episcopal See of Cos was restored |
| 1933 | Greece | Titular Episcopal See of Dium was established |
| 1933 | Greece | Titular Episcopal See of Dragobitia was established |
| 1933 | Greece | Titular Episcopal See of Edessa in Macedonia was established |
| 1933 | Greece | Titular Episcopal See of Elatea was established |
| 1933 | Greece | Titular Episcopal See of Eleutherna was renamed as Titular Episcopal See of Eleutherna |
| 1933 | Greece | Titular Episcopal See of Eleutheropolis in Macedonia was established |
| 1933 | Greece | Titular Episcopal See of Elis was established |
| 1933 | Greece | Titular Episcopal See of Eressus was established |
| 1933 | Greece | Titular Episcopal See of Eurœa was renamed as Titular Episcopal See of Eurœa in Epiro |
| 1933 | Greece | Titular Episcopal See of Gomphi was established |
| 1933 | Greece | Titular Episcopal See of Helos was established |
| 1933 | Greece | Titular Episcopal See of Heraclea Pelagoniæ was established |
| 1933 | Greece | Titular Episcopal See of Hierapytna was restored |
| 1933 | Greece | Titular Episcopal See of Hierissus was renamed as Titular Episcopal See of Hierissus |
| 1933 | Greece | Titular Episcopal See of Ioannina was established |
| 1933 | Greece | Titular Episcopal See of Ios was established |
| 1933 | Greece | Titular Episcopal See of Lappa was renamed as Titular Episcopal See of Lappa |
| 1933 | Greece | Titular Metropolitan See of Larissa was renamed as Titular Metropolitan See of Larissa in Thracia |
| 1933 | Greece | Titular Episcopal See of Lete was renamed as Titular Episcopal See of Lete |
| 1933 | Greece | Titular Archiepiscopal See of Leucas was renamed as Titular Archiepiscopal See of Leucas |
| 1933 | Greece | Titular Episcopal See of Lidoricium was established |
| 1933 | Greece | Titular Archiepiscopal See of Macra was renamed as Titular Archiepiscopal See of Macra |
| 1933 | Greece | Titular Episcopal See of Maina was established |
| 1933 | Greece | Titular Episcopal See of Marmarizana was established |
| 1933 | Greece | Titular Archiepiscopal See of Maronea was renamed as Titular Archiepiscopal See of Maronea |
| 1933 | Greece | Titular Archiepiscopal See of Massimianopolis in Rhodope was established |
| 1933 | Greece | Titular Episcopal See of Megalopolis in Peloponneso was established |
| 1933 | Greece | Titular Episcopal See of Methone was renamed as Titular Episcopal See of Methone |
| 1933 | Greece | Titular Episcopal See of Monembasia was established |
| 1933 | Greece | Titular Episcopal See of Thermopylæ was renamed as Titular Episcopal See of Mundinitza |
| 1933 | Greece | Titular Episcopal See of Nauplia was established |
| 1933 | Greece | Titular Metropolitan See of Nicopolis was renamed as Titular Metropolitan See of Nicopolis in Epiro |
| 1933 | Greece | Titular Metropolitan See of Novæ Patræ was established |
| 1933 | Greece | Titular Episcopal See of Opus was established |
| 1933 | Greece | Titular Episcopal See of Paros was established |
| 1933 | Greece | Titular Episcopal See of Peritheorium was established |
| 1933 | Greece | Titular Episcopal See of Pharsalus was renamed as Titular Episcopal See of Pharsalus |
| 1933 | Greece | Titular Episcopal See of Photice was established |
| 1933 | Greece | Titular Episcopal See of Platamon was established |
| 1933 | Greece | Titular Episcopal See of Plotinopolis was established |
| 1933 | Greece | Titular Episcopal See of Polystylus was renamed as Titular Episcopal See of Polystylus |
| 1933 | Greece | Titular Episcopal See of Porthmus was established |
| 1933 | Greece | Titular Episcopal See of Rhoga was established |
| 1933 | Greece | Titular Episcopal See of Scarphea was established |
| 1933 | Greece | Titular Episcopal See of Sciathus was established |
| 1933 | Greece | Titular Episcopal See of Scopelus in Thessalia was established |
| 1933 | Greece | Titular Episcopal See of Scyrus was restored |
| 1933 | Greece | Titular Episcopal See of Serbia was established |
| 1933 | Greece | Titular Episcopal See of Setea was established |
| 1933 | Greece | Titular Episcopal See of Sicyon was established |
| 1933 | Greece | Titular Episcopal See of Stagoi was established |
| 1933 | Greece | Titular Episcopal See of Strongyle was established |
| 1933 | Greece | Titular Episcopal See of Subrita was established |
| 1933 | Greece | Titular Metropolitan See of Thebæ was renamed as Titular Metropolitan See of Thebæ |
| 1933 | Greece | Titular Episcopal See of Halmyrus was renamed as Titular Episcopal See of Thebæ Phthiotides |
| 1933 | Greece | Titular Metropolitan See of Trajanopolis was renamed as Titular Metropolitan See of Trajanopolis in Rhodope |
| 1933 | Greece | Titular Episcopal See of Tricca was renamed as Titular Episcopal See of Tricca |
| 1933 | Greece | Titular Episcopal See of Trœzene was established |
| 1933 | Greece | Titular Episcopal See of Drama was renamed as Titular Episcopal See of Velicia |
| 1933 | Greece | Titular Episcopal See of Xanthe was established |
| 1933 | Greece | Titular Episcopal See of Zaratovium was established |
| 1933 |  Israel | Titular Metropolitan See of Cæsarea was renamed as Titular Metropolitan See of Cesarea in Palæstina |
| 1933 | Israel | Titular Episcopal See of Diocletianopolis was renamed as Titular Episcopal See of Diocletianopolis in Palæstina |
| 1933 | Israel | Titular Episcopal See of Diocæsarea was renamed as Titular Episcopal See of Diocæsarea in Palæstina |
| 1933 | Israel | Titular Episcopal See of Ecsalus was established |
| 1933 | Israel | Titular Episcopal See of Eleutheropolis was renamed as Titular Episcopal See of Eleutheropolis in Palæstina |
| 1933 | Israel | Titular Episcopal See of Emmaüs was established |
| 1933 | Israel | Titular Episcopal See of Gabæ was established |
| 1933 | Israel | Titular Episcopal See of Gazera was established |
| 1933 | Israel | Titular Episcopal See of Gerara was established |
| 1933 | Israel | Titular Episcopal See of Helenopolis was renamed as Titular Episcopal See of Helenopolis in Palæstina |
| 1933 | Israel | Titular Episcopal See of Iamnia was established |
| 1933 | Israel | Titular Episcopal See of Maximianopolis was renamed as Titular Episcopal See of Massimianopolis in Palæstina |
| 1933 | Israel | Titular Episcopal See of Parembolæ in Palæstina was established |
| 1933 | Israel | Titular Episcopal See of Porphyreon was renamed as Titular Episcopal See of Porphyreon |
| 1933 | Israel | Titular Episcopal See of Ptolemais (Maronite Rite) was suppressed |
| 1933 | Israel | Titular Episcopal See of Ptolemais was renamed as Titular Episcopal See of Ptolemais in Phœnicia |
| 1933 | Israel | Titular Episcopal See of Sebaste was renamed as Titular Episcopal See of Sebaste in Palæstina |
| 1933 | Israel | Titular Episcopal See of Sozusa was renamed as Titular Episcopal See of Sozusa in Palæstina |
| 1933 | Israel | Titular Episcopal See of Zabulon was restored |
| 1933 |  Jordan | Titular Episcopal See of Abila in Palæstina was established |
| 1933 | Jordan | Titular Episcopal See of Amathus in Palæstina was established |
| 1933 | Jordan | Titular Episcopal See of Augustopolis in Palæstina was established |
| 1933 | Jordan | Titular Episcopal See of Bacatha in Arabia was established |
| 1933 | Jordan | Titular Episcopal See of Bacatha in Palestina was established |
| 1933 | Jordan | Titular Episcopal See of Charac-Moba was established |
| 1933 | Jordan | Titular Episcopal See of Chrysopolis in Arabia was established |
| 1933 | Jordan | Titular Episcopal See of Esbus was renamed as Titular Episcopal See of Esbus |
| 1933 | Jordan | Titular Episcopal See of Eutyme was established |
| 1933 | Jordan | Titular Episcopal See of Medaba was established |
| 1933 | Jordan | Titular Episcopal See of Neila was restored |
| 1933 | Jordan | Titular Metropolitan See of Petra was renamed as Titular Metropolitan See of Petra in Palæstina |
| 1933 | Jordan | Titular Episcopal See of Philadelphia in Arabia was established |
| 1933 | Jordan | Titular Episcopal See of Phæno was established |
| 1933 | Jordan | Titular Episcopal See of Zoora was renamed as Titular Episcopal See of Zoara |
| 1933 | Jordan | Titular Episcopal See of Æla was renamed as Titular Episcopal See of Æla |
| 1933 |  Kosovo | Titular Episcopal See of Prizren was restored |
| 1933 |  Lebanon | Titular Episcopal See of Arca (Maronite Rite) was promoted as Titular Archiepiscopal See of Arca in Armenia |
| 1933 | Lebanon | Titular Episcopal See of Arca in Phœnicia was established |
| 1933 | Lebanon | Titular Archiepiscopal See of Heliopolis was renamed as Titular Archiepiscopal See of Heliopolis in Phœnicia |
| 1933 | Lebanon | Titular Episcopal See of Orthosias was renamed as Titular Episcopal See of Orthosias in Phœnicia |
| 1933 | Lebanon | Titular Episcopal See of Rachlea was established |
| 1933 | Lebanon | Titular Episcopal See of Tripolis was renamed as Titular Episcopal See of Tripolis in Phœnicia |
| 1933 |  Libya | Titular Episcopal See of Ammoniace was established |
| 1933 | Libya | Titular Episcopal See of Boreum was established |
| 1933 | Libya | Titular Episcopal See of Dystis was established |
| 1933 | Libya | Titular Episcopal See of Erythrum was established |
| 1933 | Libya | Titular Episcopal See of Gergis was established |
| 1933 | Libya | Titular Episcopal See of Gigthi was established |
| 1933 | Libya | Titular Episcopal See of Leptis magna was renamed as Titular Episcopal See of Leptis Magna |
| 1933 | Libya | Titular Episcopal See of Olbia was established |
| 1933 | Libya | Titular Episcopal See of Oëa was renamed as Titular Episcopal See of Oëa |
| 1933 | Libya | Titular Episcopal See of Ptolemais was renamed as Titular Episcopal See of Ptolemais in Libya |
| 1933 | Libya | Titular Episcopal See of Sinnipsa was established |
| 1933 | Libya | Titular Episcopal See of Sozusa in Libya was established |
| 1933 | Libya | Titular Episcopal See of Villamagna in Tripolitana was established |
| 1933 | Libya | Titular Episcopal See of Zagylis was established |
| 1933 |  Montenegro | Titular Episcopal See of Budua was restored |
| 1933 | Montenegro | Titular Metropolitan See of Doclea was renamed as Titular Metropolitan See of Doclea |
| 1933 | Montenegro | Titular Episcopal See of Novi was established |
| 1933 | Montenegro | Titular Episcopal See of Suacia was restored |
| 1933 | Montenegro | Titular Episcopal See of Ulcinj was restored |
| 1933 |  North Macedonia | Titular Episcopal See of Strumnitza was established |
| 1933 |  Palestine | Titular Episcopal See of Cæsarea (Greek-Melkite Rite) was renamed as Titular Episcopal See of Cesarea in Palæstina |
| 1933 | Palestine | Titular Episcopal See of Maiumas Gazæ was restored |
| 1933 | Palestine | Titular Episcopal See of Menois was established |
| 1933 | Palestine | Titular Episcopal See of Neapolis in Palæstina was established |
| 1933 | Palestine | Titular Episcopal See of Raphia was established |
| 1933 | Palestine | Titular Episcopal See of Sycomazon was established |
| 1933 |  Romania | Titular Archiepiscopal See of Constantia was renamed as Titular Archiepiscopal See of Tomi |
| 1933 |  Russia | Titular Episcopal See of Tanais was renamed as Titular Episcopal See of Tanais |
| 1933 |  Serbia | Titular Episcopal See of Aquæ in Dacia was established |
| 1933 | Serbia | Titular Episcopal See of Horreomargum was restored |
| 1933 | Serbia | Titular Archiepiscopal See of Iustiniana prima was restored |
| 1933 | Serbia | Titular Episcopal See of Naissus was restored |
| 1933 | Serbia | Titular Episcopal See of Ulpiana was established |
| 1933 |  Syria | Titular Episcopal See of Abila Lysaniæ was renamed as Titular Episcopal See of Abila Lysaniæ |
| 1933 | Syria | Titular Episcopal See of Agrippias was established |
| 1933 | Syria | Titular Episcopal See of Amathus was suppressed |
| 1933 | Syria | Titular Episcopal See of Antarados was established |
| 1933 | Syria | Titular Metropolitan See of Apamea was renamed as Titular Metropolitan See of Apamea in Syria |
| 1933 | Syria | Titular Episcopal See of Bosana was established |
| 1933 | Syria | Titular Episcopal See of Cæsarea was renamed as Titular Episcopal See of Cesarea Philippi |
| 1933 | Syria | Titular Archiepiscopal See of Chalcis in Syria was established |
| 1933 | Syria | Titular Episcopal See of Chonochora was established |
| 1933 | Syria | Titular Episcopal See of Constantia was renamed as Titular Episcopal See of Constantia in Arabia |
| 1933 | Syria | Titular Episcopal See of Corada was established |
| 1933 | Syria | Titular Episcopal See of Amathus (Maronite Rite) was renamed as Titular Episcopal See of Epiphania in Syria |
| 1933 | Syria | Titular Episcopal See of Erra was established |
| 1933 | Syria | Titular Episcopal See of Euaria was renamed as Titular Episcopal See of Eurœa in Phœnicia |
| 1933 | Syria | Titular Episcopal See of Hierapolis (Syriac Rite) was renamed as Titular Episcopal See of Hierapolis in Syria |
| 1933 | Syria | Titular Episcopal See of Laodicea ad Libanum was established |
| 1933 | Syria | Titular Archiepiscopal See of Laodicea was renamed as Titular Archiepiscopal See of Laodicea in Syria |
| 1933 | Syria | Titular Archiepiscopal See of Laodicea (Maronite Rite) was renamed as Titular Archiepiscopal See of Laodicea in Syria |
| 1933 | Syria | Titular Episcopal See of Laodicea (Greek-Melkite Rite) was renamed as Titular Episcopal See of Laodicea in Syria |
| 1933 | Syria | Titular Episcopal See of Larissa in Syria was established |
| 1933 | Syria | Titular Episcopal See of Massimianopolis in Arabia was established |
| 1933 | Syria | Titular Episcopal See of Neapolis in Arabia was established |
| 1933 | Syria | Titular Episcopal See of Neocæsarea was renamed as Titular Episcopal See of Neocæsarea in Syria |
| 1933 | Syria | Titular Episcopal See of Orisa was established |
| 1933 | Syria | Titular Episcopal See of Parembolæ in Phœnicia was established |
| 1933 | Syria | Titular Episcopal See of Philippopolis was renamed as Titular Episcopal See of Philippopolis in Arabia |
| 1933 | Syria | Titular Episcopal See of Phæna was established |
| 1933 | Syria | Titular Episcopal See of Saccæa was established |
| 1933 | Syria | Titular Episcopal See of Salamias was established |
| 1933 | Syria | Titular Episcopal See of Seleucobelus was established |
| 1933 | Syria | Titular Episcopal See of Urima was established |
| 1933 | Syria | Titular Episcopal See of Zenobias was established |
| 1933 | Syria | Titular Episcopal See of Zeugma in Mesopotamia was established |
| 1933 | Syria | Titular Episcopal See of Zeugma was renamed as Titular Episcopal See of Zeugma in Syria |
| 1933 | Syria | Titular Episcopal See of Zorava was established |
| 1933 |  Tunisia | Titular Episcopal See of Abaradira was established |
| 1933 | Tunisia | Titular Episcopal See of Abari was established |
| 1933 | Tunisia | Titular Episcopal See of Abbir Germaniciana was established |
| 1933 | Tunisia | Titular Episcopal See of Abbir majus was renamed as Titular Episcopal See of Abbir maius |
| 1933 | Tunisia | Titular Episcopal See of Abidda was established |
| 1933 | Tunisia | Titular Episcopal See of Abitinæ was restored |
| 1933 | Tunisia | Titular Episcopal See of Abora was established |
| 1933 | Tunisia | Titular Episcopal See of Absa Salla was established |
| 1933 | Tunisia | Titular Episcopal See of Abthugni was established |
| 1933 | Tunisia | Titular Episcopal See of Abziri was established |
| 1933 | Tunisia | Titular Episcopal See of Acholla was established |
| 1933 | Tunisia | Titular Episcopal See of Africa was established |
| 1933 | Tunisia | Titular Episcopal See of Afufenia was established |
| 1933 | Tunisia | Titular Episcopal See of Aga was renamed as Titular Episcopal See of Agbia |
| 1933 | Tunisia | Titular Episcopal See of Aggar was established |
| 1933 | Tunisia | Titular Episcopal See of Aggersel was established |
| 1933 | Tunisia | Titular Episcopal See of Altiburus was established |
| 1933 | Tunisia | Titular Episcopal See of Ammædara was renamed as Titular Episcopal See of Ammædara |
| 1933 | Tunisia | Titular Episcopal See of Amudarsa was established |
| 1933 | Tunisia | Titular Episcopal See of Apisa maius was established |
| 1933 | Tunisia | Titular Episcopal See of Aptuca was established |
| 1933 | Tunisia | Titular Episcopal See of Aquæ Albæ in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Aquæ in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Aquæ in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Aquæ novæ in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Aquæ regiæ was established |
| 1933 | Tunisia | Titular Episcopal See of Aradi was established |
| 1933 | Tunisia | Titular Episcopal See of Aurusuliana was established |
| 1933 | Tunisia | Titular Episcopal See of Ausafa was established |
| 1933 | Tunisia | Titular Episcopal See of Autenti was established |
| 1933 | Tunisia | Titular Episcopal See of Auzegera was established |
| 1933 | Tunisia | Titular Episcopal See of Avensa was established |
| 1933 | Tunisia | Titular Episcopal See of Avioccala was established |
| 1933 | Tunisia | Titular Episcopal See of Avissa was established |
| 1933 | Tunisia | Titular Episcopal See of Avitta Bibba was established |
| 1933 | Tunisia | Titular Episcopal See of Bahanna was established |
| 1933 | Tunisia | Titular Episcopal See of Bararus was established |
| 1933 | Tunisia | Titular Episcopal See of Bassiana was established |
| 1933 | Tunisia | Titular Episcopal See of Bavagaliana was established |
| 1933 | Tunisia | Titular Episcopal See of Bencenna was established |
| 1933 | Tunisia | Titular Episcopal See of Beneventum was established |
| 1933 | Tunisia | Titular Episcopal See of Bennefa was restored |
| 1933 | Tunisia | Titular Episcopal See of Bilta was established |
| 1933 | Tunisia | Titular Episcopal See of Bisica was established |
| 1933 | Tunisia | Titular Episcopal See of Bladia was established |
| 1933 | Tunisia | Titular Episcopal See of Bonusta was established |
| 1933 | Tunisia | Titular Episcopal See of Boseta was established |
| 1933 | Tunisia | Titular Episcopal See of Botriana was established |
| 1933 | Tunisia | Titular Episcopal See of Bulla was established |
| 1933 | Tunisia | Titular Episcopal See of Bulla Regia was renamed as Titular Episcopal See of Bulla regia |
| 1933 | Tunisia | Titular Episcopal See of Bure was established |
| 1933 | Tunisia | Titular Episcopal See of Buruni was established |
| 1933 | Tunisia | Titular Episcopal See of Cabarsussi was established |
| 1933 | Tunisia | Titular Episcopal See of Carcabia was established |
| 1933 | Tunisia | Titular Archiepiscopal See of Caria was demoted as Titular Episcopal See of Cariana |
| 1933 | Tunisia | Titular Episcopal See of Carpi was established |
| 1933 | Tunisia | Titular Episcopal See of Cefala was established |
| 1933 | Tunisia | Titular Episcopal See of Cellæ in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Cenculiana was established |
| 1933 | Tunisia | Titular Episcopal See of Cenæ was established |
| 1933 | Tunisia | Titular Episcopal See of Cerbali was established |
| 1933 | Tunisia | Titular Episcopal See of Chusira was established |
| 1933 | Tunisia | Titular Episcopal See of Cilibia was established |
| 1933 | Tunisia | Titular Episcopal See of Cincari was established |
| 1933 | Tunisia | Titular Episcopal See of Cissita was established |
| 1933 | Tunisia | Titular Episcopal See of Clypia was established |
| 1933 | Tunisia | Titular Episcopal See of Crepedula was established |
| 1933 | Tunisia | Titular Episcopal See of Cresima was established |
| 1933 | Tunisia | Titular Episcopal See of Cufruta was established |
| 1933 | Tunisia | Titular Episcopal See of Culusi was established |
| 1933 | Tunisia | Titular Episcopal See of Cæciri was established |
| 1933 | Tunisia | Titular Episcopal See of Decoriana was established |
| 1933 | Tunisia | Titular Episcopal See of Dices was established |
| 1933 | Tunisia | Titular Episcopal See of Druas was established |
| 1933 | Tunisia | Titular Episcopal See of Dura was established |
| 1933 | Tunisia | Titular Episcopal See of Edistiana was established |
| 1933 | Tunisia | Titular Episcopal See of Egnatia was established |
| 1933 | Tunisia | Titular Episcopal See of Elephantaria in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Febiana was established |
| 1933 | Tunisia | Titular Episcopal See of Feradi maius was established |
| 1933 | Tunisia | Titular Episcopal See of Feradi minus was established |
| 1933 | Tunisia | Titular Episcopal See of Filaca was established |
| 1933 | Tunisia | Titular Episcopal See of Fissiana was established |
| 1933 | Tunisia | Titular Episcopal See of Foratiana was established |
| 1933 | Tunisia | Titular Episcopal See of Furnos major was renamed as Titular Episcopal See of Fornos major |
| 1933 | Tunisia | Titular Episcopal See of Forontoniana was established |
| 1933 | Tunisia | Titular Episcopal See of Furnos minor was established |
| 1933 | Tunisia | Titular Episcopal See of Gaguari was established |
| 1933 | Tunisia | Titular Episcopal See of Garriana was restored |
| 1933 | Tunisia | Titular Episcopal See of Gemellæ in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Gisipa was established |
| 1933 | Tunisia | Titular Episcopal See of Giufi was established |
| 1933 | Tunisia | Titular Episcopal See of Giufi Salaria was established |
| 1933 | Tunisia | Titular Episcopal See of Gor was established |
| 1933 | Tunisia | Titular Episcopal See of Gratiana was established |
| 1933 | Tunisia | Titular Episcopal See of Gubaliana was established |
| 1933 | Tunisia | Titular Episcopal See of Gummi in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Gummi in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Gunela was established |
| 1933 | Tunisia | Titular Episcopal See of Hermiana was established |
| 1933 | Tunisia | Titular Episcopal See of Hierpiniana was established |
| 1933 | Tunisia | Titular Episcopal See of Hilta was established |
| 1933 | Tunisia | Titular Episcopal See of Horrea Cœlia was established |
| 1933 | Tunisia | Titular Episcopal See of Horta was established |
| 1933 | Tunisia | Titular Episcopal See of Jubaltiana was established |
| 1933 | Tunisia | Titular Episcopal See of Junca in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Lacubaza was established |
| 1933 | Tunisia | Titular Episcopal See of Lapda was established |
| 1933 | Tunisia | Titular Episcopal See of Lares was renamed as Titular Episcopal See of Lares |
| 1933 | Tunisia | Titular Episcopal See of Leptiminus was established |
| 1933 | Tunisia | Titular Episcopal See of Libertina was established |
| 1933 | Tunisia | Titular Episcopal See of Luperciana was established |
| 1933 | Tunisia | Titular Episcopal See of Macriana maior was established |
| 1933 | Tunisia | Titular Episcopal See of Macriana minor was established |
| 1933 | Tunisia | Titular Episcopal See of Margarita was renamed as Titular Episcopal See of Mactaris |
| 1933 | Tunisia | Titular Episcopal See of Madarsuma was established |
| 1933 | Tunisia | Titular Episcopal See of Maraguia was established |
| 1933 | Tunisia | Titular Episcopal See of Marazanæ was established |
| 1933 | Tunisia | Titular Episcopal See of Marazanæ regiæ was established |
| 1933 | Tunisia | Titular Episcopal See of Marcelliana was established |
| 1933 | Tunisia | Titular Episcopal See of Masclianæ was established |
| 1933 | Tunisia | Titular Episcopal See of Matara was renamed as Titular Episcopal See of Matara in Proconsulari |
| 1933 | Tunisia | Titular Episcopal See of Materiana was established |
| 1933 | Tunisia | Titular Episcopal See of Maximiana in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Maxula Prates was renamed as Titular Episcopal See of Maxula Prates |
| 1933 | Tunisia | Titular Episcopal See of Medeli was established |
| 1933 | Tunisia | Titular Episcopal See of Mediana was established |
| 1933 | Tunisia | Titular Episcopal See of Megalopolis in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Melzi was established |
| 1933 | Tunisia | Titular Episcopal See of Membressa was established |
| 1933 | Tunisia | Titular Episcopal See of Menefessi was restored |
| 1933 | Tunisia | Titular Episcopal See of Mibiarca was established |
| 1933 | Tunisia | Titular Episcopal See of Midica was established |
| 1933 | Tunisia | Titular Episcopal See of Mididi was established |
| 1933 | Tunisia | Titular Episcopal See of Migirpa was established |
| 1933 | Tunisia | Titular Episcopal See of Mimiana was established |
| 1933 | Tunisia | Titular Episcopal See of Mizigi was established |
| 1933 | Tunisia | Titular Episcopal See of Mozotcori was established |
| 1933 | Tunisia | Titular Episcopal See of Mulli was established |
| 1933 | Tunisia | Titular Episcopal See of Munatiana was established |
| 1933 | Tunisia | Titular Episcopal See of Mutia was established |
| 1933 | Tunisia | Titular Episcopal See of Muzuca in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Muzuca in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Naraggara was established |
| 1933 | Tunisia | Titular Episcopal See of Nationa was established |
| 1933 | Tunisia | Titular Episcopal See of Neapolis in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Nepte was established |
| 1933 | Tunisia | Titular Episcopal See of Nova was established |
| 1933 | Tunisia | Titular Episcopal See of Octaba was established |
| 1933 | Tunisia | Titular Episcopal See of Octabia was established |
| 1933 | Tunisia | Titular Episcopal See of Pederodiana was established |
| 1933 | Tunisia | Titular Episcopal See of Pertusa was established |
| 1933 | Tunisia | Titular Episcopal See of Pisita was established |
| 1933 | Tunisia | Titular Episcopal See of Præcausa was established |
| 1933 | Tunisia | Titular Episcopal See of Præsidium was established |
| 1933 | Tunisia | Titular Episcopal See of Papiana was renamed as Titular Episcopal See of Pupiana |
| 1933 | Tunisia | Titular Episcopal See of Puppi was established |
| 1933 | Tunisia | Titular Episcopal See of Putia in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Quæstoriana was established |
| 1933 | Tunisia | Titular Episcopal See of Rucuma was established |
| 1933 | Tunisia | Titular Episcopal See of Rufiniana was established |
| 1933 | Tunisia | Titular Episcopal See of Rusuca was established |
| 1933 | Tunisia | Titular Episcopal See of Saia maior was established |
| 1933 | Tunisia | Titular Episcopal See of Sassura was established |
| 1933 | Tunisia | Titular Episcopal See of Scebatiana was established |
| 1933 | Tunisia | Titular Episcopal See of Sebarga was established |
| 1933 | Tunisia | Titular Episcopal See of Segermes was established |
| 1933 | Tunisia | Titular Episcopal See of Selemselæ was established |
| 1933 | Tunisia | Titular Episcopal See of Selendeta was established |
| 1933 | Tunisia | Titular Episcopal See of Semina was established |
| 1933 | Tunisia | Titular Episcopal See of Septimunicia was established |
| 1933 | Tunisia | Titular Episcopal See of Serra was established |
| 1933 | Tunisia | Titular Episcopal See of Severiana was established |
| 1933 | Tunisia | Titular Episcopal See of Siccenna was established |
| 1933 | Tunisia | Titular Episcopal See of Sicilibba was established |
| 1933 | Tunisia | Titular Episcopal See of Simidicca was established |
| 1933 | Tunisia | Titular Episcopal See of Simingi was established |
| 1933 | Tunisia | Titular Episcopal See of Siminina was established |
| 1933 | Tunisia | Titular Episcopal See of Simitthu was established |
| 1933 | Tunisia | Titular Episcopal See of Sinna was established |
| 1933 | Tunisia | Titular Episcopal See of Sinnuara was established |
| 1933 | Tunisia | Titular Episcopal See of Suas was established |
| 1933 | Tunisia | Titular Episcopal See of Succuba was established |
| 1933 | Tunisia | Titular Episcopal See of Sufes was restored |
| 1933 | Tunisia | Titular Episcopal See of Suliana was established |
| 1933 | Tunisia | Titular Episcopal See of Sullectum was established |
| 1933 | Tunisia | Titular Episcopal See of Sutunurca was established |
| 1933 | Tunisia | Titular Episcopal See of Tabalta was established |
| 1933 | Tunisia | Titular Episcopal See of Tacia Montana was renamed as Titular Episcopal See of Tacia montana |
| 1933 | Tunisia | Titular Episcopal See of Talaptula was established |
| 1933 | Tunisia | Titular Episcopal See of Tamalluma was established |
| 1933 | Tunisia | Titular Episcopal See of Tamata was established |
| 1933 | Tunisia | Titular Episcopal See of Tambeæ was restored |
| 1933 | Tunisia | Titular Episcopal See of Tanudaia was established |
| 1933 | Tunisia | Titular Episcopal See of Taparura was established |
| 1933 | Tunisia | Titular Episcopal See of Taraqua was established |
| 1933 | Tunisia | Titular Episcopal See of Tarasa in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Teglata in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Tela was established |
| 1933 | Tunisia | Titular Episcopal See of Temuniana was established |
| 1933 | Tunisia | Titular Episcopal See of Tepelta was established |
| 1933 | Tunisia | Titular Episcopal See of Tetci was established |
| 1933 | Tunisia | Titular Episcopal See of Thabraca was renamed as Titular Episcopal See of Thabraca |
| 1933 | Tunisia | Titular Episcopal See of Thala was established |
| 1933 | Tunisia | Titular Episcopal See of Thasbalta was established |
| 1933 | Tunisia | Titular Episcopal See of Theudalis was restored |
| 1933 | Tunisia | Titular Episcopal See of Theuzi was established |
| 1933 | Tunisia | Titular Episcopal See of Thibica was established |
| 1933 | Tunisia | Titular Episcopal See of Thibiuca was restored |
| 1933 | Tunisia | Titular Episcopal See of Thiges was established |
| 1933 | Tunisia | Titular Episcopal See of Thimida was established |
| 1933 | Tunisia | Titular Episcopal See of Thimida regia was established |
| 1933 | Tunisia | Titular Episcopal See of Thisiduo was established |
| 1933 | Tunisia | Titular Episcopal See of Thizica was established |
| 1933 | Tunisia | Titular Episcopal See of Thuburbo maius was established |
| 1933 | Tunisia | Titular Episcopal See of Thuburnica was established |
| 1933 | Tunisia | Titular Episcopal See of Thubursicum-Bure was established |
| 1933 | Tunisia | Titular Episcopal See of Thucca terebenthina was established |
| 1933 | Tunisia | Titular Episcopal See of Thunigaba was established |
| 1933 | Tunisia | Titular Episcopal See of Thunudruma was established |
| 1933 | Tunisia | Titular Episcopal See of Thunusuda was established |
| 1933 | Tunisia | Titular Episcopal See of Thysdrus was established |
| 1933 | Tunisia | Titular Episcopal See of Tigias was established |
| 1933 | Tunisia | Titular Episcopal See of Tigimma was established |
| 1933 | Tunisia | Titular Episcopal See of Tiguala was established |
| 1933 | Tunisia | Titular Episcopal See of Tinisa in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Tisili was established |
| 1933 | Tunisia | Titular Episcopal See of Tituli in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Trofimiana was established |
| 1933 | Tunisia | Titular Episcopal See of Tubernuca was established |
| 1933 | Tunisia | Titular Episcopal See of Tubulbaca was established |
| 1933 | Tunisia | Titular Episcopal See of Tubyza was established |
| 1933 | Tunisia | Titular Episcopal See of Tulana was established |
| 1933 | Tunisia | Titular Episcopal See of Tunes was restored |
| 1933 | Tunisia | Titular Episcopal See of Tunnuna was established |
| 1933 | Tunisia | Titular Episcopal See of Turres in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Turris Tamalleni was established |
| 1933 | Tunisia | Titular Episcopal See of Turris in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Turrisblanda was established |
| 1933 | Tunisia | Titular Episcopal See of Tusuros was established |
| 1933 | Tunisia | Titular Episcopal See of Uchi maius was established |
| 1933 | Tunisia | Titular Episcopal See of Ucres was established |
| 1933 | Tunisia | Titular Episcopal See of Ululi was restored |
| 1933 | Tunisia | Titular Episcopal See of Unizibira was established |
| 1933 | Tunisia | Titular Episcopal See of Uppenna was established |
| 1933 | Tunisia | Titular Episcopal See of Urusi was restored |
| 1933 | Tunisia | Titular Episcopal See of Utimmira was established |
| 1933 | Tunisia | Titular Episcopal See of Uzzipari was renamed as Titular Episcopal See of Uzippari |
| 1933 | Tunisia | Titular Episcopal See of Valentiniana was established |
| 1933 | Tunisia | Titular Episcopal See of Vartana was established |
| 1933 | Tunisia | Titular Episcopal See of Vassinassa was established |
| 1933 | Tunisia | Titular Episcopal See of Vazari-Didda was established |
| 1933 | Tunisia | Titular Episcopal See of Vazi-Sarra was established |
| 1933 | Tunisia | Titular Episcopal See of Vegesela in Byzacena was established |
| 1933 | Tunisia | Titular Episcopal See of Vibiana was established |
| 1933 | Tunisia | Titular Episcopal See of Victoriana was established |
| 1933 | Tunisia | Titular Episcopal See of Vicus Aterii was established |
| 1933 | Tunisia | Titular Episcopal See of Vicus Augusti was established |
| 1933 | Tunisia | Titular Episcopal See of Vicus Turris was established |
| 1933 | Tunisia | Titular Episcopal See of Villamagna in Proconsulari was established |
| 1933 | Tunisia | Titular Episcopal See of Vina was established |
| 1933 | Tunisia | Titular Episcopal See of Vita was restored |
| 1933 | Tunisia | Titular Episcopal See of Voli was established |
| 1933 | Tunisia | Titular Episcopal See of Zama maior was renamed as Titular Episcopal See of Zama maior |
| 1933 | Tunisia | Titular Episcopal See of Zama minor was established |
| 1933 | Tunisia | Titular Episcopal See of Zarna was established |
| 1933 | Tunisia | Titular Episcopal See of Zella was established |
| 1933 | Tunisia | Titular Episcopal See of Zica was established |
| 1933 | Tunisia | Titular Episcopal See of Æliæ was established |
| 1933 |  Turkiye | Titular Episcopal See of Acarassus was established |
| 1933 | Turkiye | Titular Episcopal See of Achyraus was restored |
| 1933 | Turkiye | Titular Episcopal See of Iustinianopolis was renamed as Titular Episcopal See of Acilisene |
| 1933 | Turkiye | Titular Episcopal See of Acrassus was established |
| 1933 | Turkiye | Titular Episcopal See of Adrasus was renamed as Titular Episcopal See of Adrasus |
| 1933 | Turkiye | Titular Episcopal See of Cambysopolis was renamed as Titular Episcopal See of Alexandria minor |
| 1933 | Turkiye | Titular Episcopal See of Algiza was renamed as Titular Episcopal See of Algiza |
| 1933 | Turkiye | Titular Episcopal See of Alia was established |
| 1933 | Turkiye | Titular Episcopal See of Amadassa was established |
| 1933 | Turkiye | Titular Episcopal See of Amblada was established |
| 1933 | Turkiye | Titular Episcopal See of Anatetarte was established |
| 1933 | Turkiye | Titular Episcopal See of Anazarbus (Armenian Rite) was suppressed |
| 1933 | Turkiye | Titular Episcopal See of Ancyra ferrea was established |
| 1933 | Turkiye | Titular Episcopal See of Andeda was established |
| 1933 | Turkiye | Titular Episcopal See of Anineta was established |
| 1933 | Turkiye | Titular Episcopal See of Antiochia ad Mæandrum was established |
| 1933 | Turkiye | Titular Metropolitan See of Antiochia was renamed as Titular Metropolitan See of Antiochia in Pisidia |
| 1933 | Turkiye | Titular Episcopal See of Antiochia parva was established |
| 1933 | Turkiye | Titular Episcopal See of Anæa was established |
| 1933 | Turkiye | Titular Episcopal See of Apamea Cibotus was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Apamea in Bithynia was established |
| 1933 | Turkiye | Titular Episcopal See of Aperlæ was established |
| 1933 | Turkiye | Titular Episcopal See of Apollonia Salbace was established |
| 1933 | Turkiye | Titular Episcopal See of Apollonias was restored |
| 1933 | Turkiye | Titular Episcopal See of Apollonis was established |
| 1933 | Turkiye | Titular Episcopal See of Apollonos-Hieron was established |
| 1933 | Turkiye | Titular Episcopal See of Appia was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Aprus was restored |
| 1933 | Turkiye | Titular Episcopal See of Araxa was established |
| 1933 | Turkiye | Titular Episcopal See of Arca was renamed as Titular Episcopal See of Arca in Armenia |
| 1933 | Turkiye | Titular Episcopal See of Arcadiopolis was renamed as Titular Episcopal See of Arcadiopolis in Asia |
| 1933 | Turkiye | Titular Archiepiscopal See of Arcadiopolis in Europa was established |
| 1933 | Turkiye | Titular Episcopal See of Aristium was restored |
| 1933 | Turkiye | Titular Episcopal See of Arneæ was established |
| 1933 | Turkiye | Titular Episcopal See of Arsamosata was established |
| 1933 | Turkiye | Titular Episcopal See of Arycanda was renamed as Titular Episcopal See of Arycanda |
| 1933 | Turkiye | Titular Episcopal See of Aspona was established |
| 1933 | Turkiye | Titular Episcopal See of Atenia was established |
| 1933 | Turkiye | Titular Episcopal See of Athyra was established |
| 1933 | Turkiye | Titular Episcopal See of Attalea in Lydia was established |
| 1933 | Turkiye | Titular Episcopal See of Attalea was renamed as Titular Episcopal See of Attalea in Pamphylia |
| 1933 | Turkiye | Titular Episcopal See of Augustopolis was renamed as Titular Episcopal See of Augustopolis in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Aureliopolis in Asia was established |
| 1933 | Turkiye | Titular Episcopal See of Aureliopolis was renamed as Titular Episcopal See of Aureliopolis in Lydia |
| 1933 | Turkiye | Titular Episcopal See of Aurocla was established |
| 1933 | Turkiye | Titular Episcopal See of Bahtnæ (Syriac Rite) was suppressed |
| 1933 | Turkiye | Titular Episcopal See of Balbura was established |
| 1933 | Turkiye | Titular Episcopal See of Barata was established |
| 1933 | Turkiye | Titular Episcopal See of Bareta was established |
| 1933 | Turkiye | Titular Episcopal See of Bargylia was established |
| 1933 | Turkiye | Titular Episcopal See of Baris in Hellesponto was established |
| 1933 | Turkiye | Titular Episcopal See of Baris in Pisidia was established |
| 1933 | Turkiye | Titular Episcopal See of Batnæ was restored |
| 1933 | Turkiye | Titular Episcopal See of Belabitene was established |
| 1933 | Turkiye | Titular Episcopal See of Bethzabda was established |
| 1933 | Turkiye | Titular Episcopal See of Binda was established |
| 1933 | Turkiye | Titular Episcopal See of Blaundus was established |
| 1933 | Turkiye | Titular Episcopal See of Bria was established |
| 1933 | Turkiye | Titular Episcopal See of Bruzus was established |
| 1933 | Turkiye | Titular Episcopal See of Bubon was established |
| 1933 | Turkiye | Titular Episcopal See of Bulgarophygum was established |
| 1933 | Turkiye | Titular Episcopal See of Cana was established |
| 1933 | Turkiye | Titular Episcopal See of Candyba was established |
| 1933 | Turkiye | Titular Episcopal See of Carallia was established |
| 1933 | Turkiye | Titular Episcopal See of Cardabuntha was established |
| 1933 | Turkiye | Titular Episcopal See of Casæ in Pamphylia was established |
| 1933 | Turkiye | Titular Episcopal See of Cephas was established |
| 1933 | Turkiye | Titular Episcopal See of Cerasa was established |
| 1933 | Turkiye | Titular Episcopal See of Ceretapa was established |
| 1933 | Turkiye | Titular Episcopal See of Cesarea in Bithynia was established |
| 1933 | Turkiye | Titular Metropolitan See of Cæsarea was renamed as Titular Metropolitan See of Cesarea in Cappadocia |
| 1933 | Turkiye | Titular Metropolitan See of Chalcedon was renamed as Titular Metropolitan See of Chalcedon |
| 1933 | Turkiye | Titular Episcopal See of Chalcis in Europa was established |
| 1933 | Turkiye | Titular Episcopal See of Chersonesus in Europa was established |
| 1933 | Turkiye | Titular Episcopal See of Choma was established |
| 1933 | Turkiye | Titular Episcopal See of Cidramus was established |
| 1933 | Turkiye | Titular Episcopal See of Cinna was renamed as Titular Episcopal See of Cinna |
| 1933 | Turkiye | Titular Episcopal See of Cinnaborium was established |
| 1933 | Turkiye | Titular Episcopal See of Ciscissus was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Cius was renamed as Titular Archiepiscopal See of Cius |
| 1933 | Turkiye | Titular Episcopal See of Claneus was established |
| 1933 | Turkiye | Titular Metropolitan See of Claudiopolis was renamed as Titular Metropolitan See of Claudiopolis in Honoriade |
| 1933 | Turkiye | Titular Episcopal See of Claudiopolis was renamed as Titular Episcopal See of Claudiopolis in Isauria |
| 1933 | Turkiye | Titular Episcopal See of Cnidus was established |
| 1933 | Turkiye | Titular Episcopal See of Codaca was established |
| 1933 | Turkiye | Titular Episcopal See of Codrula was established |
| 1933 | Turkiye | Titular Episcopal See of Colbasa was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Colonia was renamed as Titular Archiepiscopal See of Colonia in Armenia |
| 1933 | Turkiye | Titular Episcopal See of Colonia in Cappadocia was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Colossæ was renamed as Titular Archiepiscopal See of Colossæ |
| 1933 | Turkiye | Titular Episcopal See of Comama was established |
| 1933 | Turkiye | Titular Episcopal See of Comba was established |
| 1933 | Turkiye | Titular Episcopal See of Cone was established |
| 1933 | Turkiye | Titular Episcopal See of Constantia in Thracia was established |
| 1933 | Turkiye | Titular Episcopal See of Coropissus was established |
| 1933 | Turkiye | Titular Episcopal See of Corydala was renamed as Titular Episcopal See of Corydala |
| 1933 | Turkiye | Titular Episcopal See of Catenna was renamed as Titular Episcopal See of Cotenna |
| 1933 | Turkiye | Titular Episcopal See of Cratia was renamed as Titular Episcopal See of Cratia |
| 1933 | Turkiye | Titular Episcopal See of Cremna was established |
| 1933 | Turkiye | Titular Episcopal See of Cucusus was renamed as Titular Episcopal See of Cucusus |
| 1933 | Turkiye | Titular Episcopal See of Cyanæ was established |
| 1933 | Turkiye | Titular Episcopal See of Cyme was renamed as Titular Episcopal See of Cyme |
| 1933 | Turkiye | Titular Episcopal See of Cœla was established |
| 1933 | Turkiye | Titular Episcopal See of Dadybra was established |
| 1933 | Turkiye | Titular Episcopal See of Daldis was established |
| 1933 | Turkiye | Titular Episcopal See of Dalisandus in Isauria was established |
| 1933 | Turkiye | Titular Episcopal See of Dalisandus in Pamphylia was established |
| 1933 | Turkiye | Titular Episcopal See of Daonium was renamed as Titular Episcopal See of Daonium |
| 1933 | Turkiye | Titular Episcopal See of Thynias was renamed as Titular Episcopal See of Daphnusia |
| 1933 | Turkiye | Titular Episcopal See of Daphnutium was established |
| 1933 | Turkiye | Titular Episcopal See of Dascylium was established |
| 1933 | Turkiye | Titular Episcopal See of Diocletianoplis in Thracia was established |
| 1933 | Turkiye | Titular Episcopal See of Diocæsarea in Isauria was established |
| 1933 | Turkiye | Titular Episcopal See of Dioshieron was established |
| 1933 | Turkiye | Titular Episcopal See of Diospolis in Thracia was established |
| 1933 | Turkiye | Titular Episcopal See of Docimium was renamed as Titular Episcopal See of Docimium |
| 1933 | Turkiye | Titular Episcopal See of Dometiopolis was renamed as Titular Episcopal See of Dometiopolis |
| 1933 | Turkiye | Titular Episcopal See of Drizipara was promoted as Titular Archiepiscopal See of Drizipara |
| 1933 | Turkiye | Titular Episcopal See of Ecdaumava was established |
| 1933 | Turkiye | Titular Metropolitan See of Edessa was renamed as Titular Metropolitan See of Edessa in Osrhoëne |
| 1933 | Turkiye | Titular Episcopal See of Eluza was established |
| 1933 | Turkiye | Titular Episcopal See of Epiphania was renamed as Titular Episcopal See of Epiphania in Cilicia |
| 1933 | Turkiye | Titular Episcopal See of Etenna was established |
| 1933 | Turkiye | Titular Episcopal See of Euaza was established |
| 1933 | Turkiye | Titular Episcopal See of Eudocia was established |
| 1933 | Turkiye | Titular Episcopal See of Eudocias was established |
| 1933 | Turkiye | Titular Episcopal See of Germa was renamed as Titular Episcopal See of Germa in Galatia |
| 1933 | Turkiye | Titular Archiepiscopal See of Germa in Hellesponto was established |
| 1933 | Turkiye | Titular Episcopal See of Germanicia was established |
| 1933 | Turkiye | Titular Episcopal See of Giustinianopolis in Galatia was established |
| 1933 | Turkiye | Titular Episcopal See of Gordoserba was established |
| 1933 | Turkiye | Titular Episcopal See of Hadriane was established |
| 1933 | Turkiye | Titular Episcopal See of Hadriania was established |
| 1933 | Turkiye | Titular Episcopal See of Hadrianopolis was renamed as Titular Episcopal See of Hadrianopolis in Honoriade |
| 1933 | Turkiye | Titular Metropolitan See of Hadrianopolis was renamed as Titular Metropolitan See of Hadrianopolis in Hæmimonto |
| 1933 | Turkiye | Titular Episcopal See of Hadrianopolis in Pisidia was established |
| 1933 | Turkiye | Titular Episcopal See of Hadrianotheræ was established |
| 1933 | Turkiye | Titular Episcopal See of Helenopolis was renamed as Titular Episcopal See of Helenopolis in Bithynia |
| 1933 | Turkiye | Titular Episcopal See of Heliosebaste was established |
| 1933 | Turkiye | Titular Episcopal See of Hemeria was renamed as Titular Episcopal See of Hemeria |
| 1933 | Turkiye | Titular Episcopal See of Heraclea Salbace was established |
| 1933 | Turkiye | Titular Episcopal See of Heraclea ad Latnum was established |
| 1933 | Turkiye | Titular Metropolitan See of Heraclea was renamed as Titular Metropolitan See of Heraclea in Europa |
| 1933 | Turkiye | Titular Episcopal See of Heraclea pontica was established |
| 1933 | Turkiye | Titular Episcopal See of Hermocapelia was established |
| 1933 | Turkiye | Titular Episcopal See of Hexamilium was established |
| 1933 | Turkiye | Titular Episcopal See of Hierapolis in Isauria was established |
| 1933 | Turkiye | Titular Metropolitan See of Hierapolis was renamed as Titular Metropolitan See of Hierapolis in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Hieron was established |
| 1933 | Turkiye | Titular Episcopal See of Homona was established |
| 1933 | Turkiye | Titular Episcopal See of Hyda in Lycaonia was established |
| 1933 | Turkiye | Titular Episcopal See of Hyllarima was established |
| 1933 | Turkiye | Titular Episcopal See of Hyrcanis was established |
| 1933 | Turkiye | Titular Episcopal See of Idebessus was established |
| 1933 | Turkiye | Titular Episcopal See of Ingila was established |
| 1933 | Turkiye | Titular Episcopal See of Irenopolis was renamed as Titular Episcopal See of Irenopolis in Cilicia |
| 1933 | Turkiye | Titular Episcopal See of Irenopolis was renamed as Titular Episcopal See of Irenopolis in Isauria |
| 1933 | Turkiye | Titular Episcopal See of Isauropolis was renamed as Titular Episcopal See of Isauropolis |
| 1933 | Turkiye | Titular Episcopal See of Isinda was renamed as Titular Episcopal See of Isinda |
| 1933 | Turkiye | Titular Episcopal See of Jotapa in Isauria was established |
| 1933 | Turkiye | Titular Episcopal See of Lagina was established |
| 1933 | Turkiye | Titular Episcopal See of Laodicea combusta was established |
| 1933 | Turkiye | Titular Metropolitan See of Laodicea was renamed as Titular Metropolitan See of Laodicea in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Lauzadus was established |
| 1933 | Turkiye | Titular Episcopal See of Lebessus was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Leotopolis in Pamphylia was established |
| 1933 | Turkiye | Titular Episcopal See of Limnæ was established |
| 1933 | Turkiye | Titular Episcopal See of Lititza was established |
| 1933 | Turkiye | Titular Episcopal See of Lizicus was established |
| 1933 | Turkiye | Titular Episcopal See of Lycaonia was established |
| 1933 | Turkiye | Titular Episcopal See of Lyrbe was renamed as Titular Episcopal See of Lyrbe |
| 1933 | Turkiye | Titular Episcopal See of Lysinia was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Madytus was renamed as Titular Archiepiscopal See of Madytus |
| 1933 | Turkiye | Titular Episcopal See of Magnesia ad Mæandrum was renamed as Titular Episcopal See of Magnesia ad Mæandrum |
| 1933 | Turkiye | Titular Episcopal See of Magnesia ad Sipylum was established |
| 1933 | Turkiye | Titular Episcopal See of Malus was established |
| 1933 | Turkiye | Titular Episcopal See of Marida was established |
| 1933 | Turkiye | Titular Episcopal See of Massimianopolis in Pamphylia was established |
| 1933 | Turkiye | Titular Episcopal See of Mastaura was renamed as Titular Episcopal See of Mastaura in Asia |
| 1933 | Turkiye | Titular Episcopal See of Mastaura in Lycia was established |
| 1933 | Turkiye | Titular Episcopal See of Mela was established |
| 1933 | Turkiye | Titular Episcopal See of Meloë in Isauria was established |
| 1933 | Turkiye | Titular Episcopal See of Meloë in Lycia was established |
| 1933 | Turkiye | Titular Episcopal See of Merus was established |
| 1933 | Turkiye | Titular Episcopal See of Mesotymolus was established |
| 1933 | Turkiye | Titular Episcopal See of Metaba was established |
| 1933 | Turkiye | Titular Episcopal See of Metropolis was renamed as Titular Episcopal See of Metropolis in Asia |
| 1933 | Turkiye | Titular Episcopal See of Metropolis in Pisidia was established |
| 1933 | Turkiye | Titular Episcopal See of Metræ was established |
| 1933 | Turkiye | Titular Episcopal See of Midaëum was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Misthia was established |
| 1933 | Turkiye | Titular Episcopal See of Mnizus was established |
| 1933 | Turkiye | Titular Metropolitan See of Mocissus was renamed as Titular Metropolitan See of Mocissus |
| 1933 | Turkiye | Titular Episcopal See of Mossyna was established |
| 1933 | Turkiye | Titular Episcopal See of Mostene was established |
| 1933 | Turkiye | Titular Episcopal See of Musbanda was established |
| 1933 | Turkiye | Titular Episcopal See of Myrica was established |
| 1933 | Turkiye | Titular Episcopal See of Mæonia was established |
| 1933 | Turkiye | Titular Episcopal See of Nasala was established |
| 1933 | Turkiye | Titular Episcopal See of Nea Aule was established |
| 1933 | Turkiye | Titular Episcopal See of Nea Valentia was established |
| 1933 | Turkiye | Titular Episcopal See of Neapolis in Caria was established |
| 1933 | Turkiye | Titular Episcopal See of Neapolis in Isauria was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Neapolis in Pisidia was established |
| 1933 | Turkiye | Titular Episcopal See of Neocæsarea in Bithynia was established |
| 1933 | Turkiye | Titular Metropolitan See of Neocæsarea was renamed as Titular Metropolitan See of Neocæsarea in Ponto |
| 1933 | Turkiye | Titular Episcopal See of Nephelis was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Nicopolis ad Nestum was established |
| 1933 | Turkiye | Titular Episcopal See of Nicopolis was renamed as Titular Episcopal See of Nicopolis in Armenia |
| 1933 | Turkiye | Titular Archiepiscopal See of Nicæa parva was established |
| 1933 | Turkiye | Titular Episcopal See of Nisa in Lycia was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Nisibis (Armenian Rite) was suppressed |
| 1933 | Turkiye | Titular Episcopal See of Numericus was established |
| 1933 | Turkiye | Titular Episcopal See of Nysa in Asia was established |
| 1933 | Turkiye | Titular Episcopal See of Oca was established |
| 1933 | Turkiye | Titular Episcopal See of Olba was restored |
| 1933 | Turkiye | Titular Episcopal See of Orthosias in Caria was established |
| 1933 | Turkiye | Titular Episcopal See of Orymna was established |
| 1933 | Turkiye | Titular Episcopal See of Otrus was established |
| 1933 | Turkiye | Titular Episcopal See of Palæopolis was renamed as Titular Episcopal See of Palæopolis in Asia |
| 1933 | Turkiye | Titular Episcopal See of Palæopolis in Pamphylia was established |
| 1933 | Turkiye | Titular Episcopal See of Pamphilus was established |
| 1933 | Turkiye | Titular Episcopal See of Panium was established |
| 1933 | Turkiye | Titular Episcopal See of Pappa was established |
| 1933 | Turkiye | Titular Episcopal See of Parlais was renamed as Titular Episcopal See of Parlais |
| 1933 | Turkiye | Titular Archiepiscopal See of Pedachtoë was established |
| 1933 | Turkiye | Titular Episcopal See of Pegæ was renamed as Titular Episcopal See of Pegæ |
| 1933 | Turkiye | Titular Episcopal See of Peltæ was established |
| 1933 | Turkiye | Titular Episcopal See of Peristasis was established |
| 1933 | Turkiye | Titular Episcopal See of Perperene was established |
| 1933 | Turkiye | Titular Episcopal See of Perrhe was renamed as Titular Episcopal See of Perrhe |
| 1933 | Turkiye | Titular Episcopal See of Perta was established |
| 1933 | Turkiye | Titular Episcopal See of Petinessus was renamed as Titular Episcopal See of Petinessus |
| 1933 | Turkiye | Titular Episcopal See of Petnelissus was renamed as Titular Episcopal See of Petnelissus |
| 1933 | Turkiye | Titular Episcopal See of Phellus was established |
| 1933 | Turkiye | Titular Episcopal See of Philadelphia was renamed as Titular Episcopal See of Philadelphia in Lydia |
| 1933 | Turkiye | Titular Episcopal See of Philadelphia minor was established |
| 1933 | Turkiye | Titular Episcopal See of Phytea was established |
| 1933 | Turkiye | Titular Episcopal See of Pionia was established |
| 1933 | Turkiye | Titular Episcopal See of Pitanæ was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Pompeiopolis in Cilicia was established |
| 1933 | Turkiye | Titular Archiepiscopal See of Pompeiopolis was renamed as Titular Archiepiscopal See of Pompeiopolis in Paphlagonia |
| 1933 | Turkiye | Titular Episcopal See of Prostanna was established |
| 1933 | Turkiye | Titular Episcopal See of Prymnessus was established |
| 1933 | Turkiye | Titular Episcopal See of Prænetus was established |
| 1933 | Turkiye | Titular Episcopal See of Psibela was established |
| 1933 | Turkiye | Titular Episcopal See of Pyrgos was established |
| 1933 | Turkiye | Titular Episcopal See of Pœmanenum was established |
| 1933 | Turkiye | Titular Episcopal See of Rhandus was established |
| 1933 | Turkiye | Titular Episcopal See of Rhodiapolis was renamed as Titular Episcopal See of Rhodiapolis |
| 1933 | Turkiye | Titular Archiepiscopal See of Rhoina was established |
| 1933 | Turkiye | Titular Episcopal See of Rhædestus was established |
| 1933 | Turkiye | Titular Episcopal See of Saittæ was established |
| 1933 | Turkiye | Titular Episcopal See of Sanavus was established |
| 1933 | Turkiye | Titular Episcopal See of Satala was renamed as Titular Episcopal See of Satala in Armenia |
| 1933 | Turkiye | Titular Episcopal See of Satala in Lydia was established |
| 1933 | Turkiye | Titular Episcopal See of Sauatra was renamed as Titular Episcopal See of Sauatra |
| 1933 | Turkiye | Titular Episcopal See of Sbida was established |
| 1933 | Turkiye | Titular Episcopal See of Scepsis was established |
| 1933 | Turkiye | Titular Episcopal See of Scopelus in Hæmimonto was established |
| 1933 | Turkiye | Titular Episcopal See of Scutarium was established |
| 1933 | Turkiye | Titular Episcopal See of Sebaste in Cilicia was established |
| 1933 | Turkiye | Titular Episcopal See of Sebaste was renamed as Titular Episcopal See of Sebaste in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Sebastopolis was renamed as Titular Episcopal See of Sebastopolis in Armenia |
| 1933 | Turkiye | Titular Episcopal See of Sebastopolis in Thracia was restored |
| 1933 | Turkiye | Titular Episcopal See of Sebela was established |
| 1933 | Turkiye | Titular Episcopal See of Seleucia ferrea was established |
| 1933 | Turkiye | Titular Metropolitan See of Seleucia was renamed as Titular Metropolitan See of Seleucia in Isauria |
| 1933 | Turkiye | Titular Episcopal See of Semnea was established |
| 1933 | Turkiye | Titular Episcopal See of Sergentza was established |
| 1933 | Turkiye | Titular Episcopal See of Sibidunda was established |
| 1933 | Turkiye | Titular Episcopal See of Siblia was established |
| 1933 | Turkiye | Titular Episcopal See of Sozopolis in Pisidia was established |
| 1933 | Turkiye | Titular Episcopal See of Stectorium was established |
| 1933 | Turkiye | Titular Episcopal See of Stratonicea was renamed as Titular Episcopal See of Stratonicea in Caria |
| 1933 | Turkiye | Titular Episcopal See of Stratonicea in Lydia was established |
| 1933 | Turkiye | Titular Episcopal See of Syca was established |
| 1933 | Turkiye | Titular Episcopal See of Syedra was established |
| 1933 | Turkiye | Titular Metropolitan See of Synnada was renamed as Titular Metropolitan See of Synnada in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Taium was established |
| 1933 | Turkiye | Titular Episcopal See of Tapasa was established |
| 1933 | Turkiye | Titular Episcopal See of Tavium was renamed as Titular Episcopal See of Tavium |
| 1933 | Turkiye | Titular Episcopal See of Tell-Mahrê was established |
| 1933 | Turkiye | Titular Episcopal See of Telmissus was renamed as Titular Episcopal See of Telmissus |
| 1933 | Turkiye | Titular Episcopal See of Temenothyræ was established |
| 1933 | Turkiye | Titular Episcopal See of Teos was renamed as Titular Episcopal See of Teos |
| 1933 | Turkiye | Titular Episcopal See of Theodorium (Greek Rite) was suppressed |
| 1933 | Turkiye | Titular Episcopal See of Theodorium was renamed as Titular Episcopal See of Theodoropolis |
| 1933 | Turkiye | Titular Episcopal See of Theodosiopolis was renamed as Titular Episcopal See of Theodosiopolis in Armenia |
| 1933 | Turkiye | Titular Episcopal See of Titopolis was renamed as Titular Episcopal See of Titiopolis |
| 1933 | Turkiye | Titular Episcopal See of Tlous was renamed as Titular Episcopal See of Tlos |
| 1933 | Turkiye | Titular Episcopal See of Tracula was established |
| 1933 | Turkiye | Titular Episcopal See of Trajanopolis was renamed as Titular Episcopal See of Trajanopolis in Phrygia |
| 1933 | Turkiye | Titular Episcopal See of Tralles was renamed as Titular Episcopal See of Tralles in Asia |
| 1933 | Turkiye | Titular Episcopal See of Tralles in Lydia was established |
| 1933 | Turkiye | Titular Episcopal See of Tripolis in Lydia was established |
| 1933 | Turkiye | Titular Episcopal See of Tymandus was established |
| 1933 | Turkiye | Titular Episcopal See of Timbrias was renamed as Titular Episcopal See of Tymbrias |
| 1933 | Turkiye | Titular Episcopal See of Tyriæum was established |
| 1933 | Turkiye | Titular Episcopal See of Valentia was established |
| 1933 | Turkiye | Titular Episcopal See of Xanthus was established |
| 1933 | Turkiye | Titular Episcopal See of Zaliche was established |
| 1933 | Turkiye | Titular Episcopal See of Zarzela was established |
| 1933 | Turkiye | Titular Episcopal See of Zenopolis was renamed as Titular Episcopal See of Zenopolis in Isauria |
| 1933 | Turkiye | Titular Episcopal See of Zenopolis in Lycia was established |
| 1933 | Turkiye | Titular Episcopal See of Zorolus was established |
| 1933 | Turkiye | Titular Episcopal See of Ægæ was established |
| 1933 | Turkiye | Titular Episcopal See of Œnoanda was established |
| 1933 |  Ukraine | Titular Episcopal See of Caffa was restored |
| 1933 | Ukraine | Titular Archiepiscopal See of Chersonesus was renamed as Titular Archiepiscopal See of Chersonesus in Zechia |
| 1933 | Ukraine | Titular Episcopal See of Soldaia was restored |
| 1933 | Ukraine | Titular Episcopal See of Sugdæa was established |
| 1933 | Titular Episcopal See of Choba was established | |
| 1933 | Titular Episcopal See of Cululi was established | |
| 1933 | Titular Episcopal See of Mammilla was established | |
| 1933 | Titular Episcopal See of Membrone was established | |
| 1933 | Titular Episcopal See of Oropus was suppressed | |
| 1933 | Titular Episcopal See of Sariphæa was established | |
| 1933 | Titular Episcopal See of Sergievo was established | |
| 1933 | Titular Episcopal See of Tingis was renamed as Titular Episcopal See of Tingis | |
| 1933.01.10 |  French Guiana | Apostolic Prefecture of French Guiana was promoted as Apostolic Vicariate of French Guiana |
| 1933.01.10 |  India | Mission sui juris of Bezwada was established (from Diocese of Hyderabad) |
| 1933.01.10 |  South Sudan | Mission sui juris of Kodok was established (from Apostolic Vicariate of Khartoum) |
| 1933.01.20 |  Philippines | Diocese of Cagayan de Oro was established (from Diocese of Zamboanga and became suffragan of Manila) |
| 1933.02.20 |  Austria | Diocese of Gurk lost territory to Metropolitan Archdiocese of Udine |
| 1933.03.02 |  China | Apostolic Prefecture of Shundefu 順德府 was established (from Apostolic Vicariate of Zhengdingfu 正定府) |
| 1933.03.02 | China | Apostolic Prefecture of Zhumadian 駐馬店 was established (from Apostolic Vicariate of Nanyangfu 南陽府 and Apostolic Prefecture of Xinyangzhou 信陽州) |
| 1933.03.03 | China | Apostolic Prefecture of Yazhou 雅州 was promoted as Apostolic Vicariate of Yazhou 雅州 |
| 1933.03.06 | China | Apostolic Prefecture of Yongnian 永年 was promoted as Apostolic Vicariate of Yongnian 永年 |
| 1933.03.30 |  Spain | Military Vicariate of Spain was suppressed |
| 1933.04.06 |  Brazil | Diocese of Bonfim was established (from Metropolitan Archdiocese of São Salvador da Bahia and became suffragan of São Salvador da Bahia) |
| 1933.04.21 | Spain | Diocese of Ceuta was suppressed (to Diocese of Cádiz y Ceuta) |
| 1933.04.21 | Spain | Diocese of Cádiz was renamed as Diocese of Cádiz y Ceuta (gained territory from the suppressed Diocese of Ceuta) |
| 1933.04.25 | China | Apostolic Prefecture of Xinyangzhou 信陽州 was promoted as Apostolic Vicariate of Xinyangzhou 信陽州 |
| 1933.05.23 |  Zambia | Mission sui juris of Lwangwa was established (from Apostolic Vicariate of Bangweulu and Apostolic Vicariate of Nyassa) |
| 1933.06.02 |  Uganda | Apostolic Vicariate of Uganda was renamed as Apostolic Vicariate of Uganda |
| 1933.06.09 |  Canada | Apostolic Vicariate of Keewatin lost territory to Diocese of Prince Albert |
| 1933.06.09 | Canada | Diocese of Prince Albert–Saskatoon was renamed as Diocese of Prince Albert (gained territory from Apostolic Vicariate of Keewatin and lost territory to establish Diocese of Saskatoon) |
| 1933.06.09 | Canada | Diocese of Saint-Jean-de-Québec was established (from Metropolitan Archdiocese of Montréal and became suffragan of Montréal) |
| 1933.06.09 | Canada | Diocese of Saskatoon was established (from Diocese of Prince Albert–Saskatoon and became suffragan of Regina) |
| 1933.07.20 | Germany | Military Vicariate of Jurisdiktionsbereich des Katholischen Feldpropstes was established |
| 1933.12 | Greece | Titular Episcopal See of Chalcis was renamed as Titular Episcopal See of Chalcis in Græcia |
| 1933.12.09 | Brazil | Territorial Prelature of Palmas was established (from Diocese of Lages and Diocese of Ponta Grossa and became suffragan of Curitiba) |
| 1933.12.13 | China | Apostolic Vicariate of Shanghai 上海 was established (from Apostolic Vicariate of Nanjing 南京) |
| 1933.12.13 | China | Apostolic Prefecture of Yanggu 陽穀 was established (from Apostolic Vicariate of Yanzhoufu 兗州府) |
| 1933.12.13 |  Madagascar | Mission sui juris of Miarinarivo was established (from Apostolic Vicariate of Tananarive) |
| 1933.12.16 |  Congo-Kinshasa | Apostolic Prefecture of Lac Albert was promoted as Apostolic Vicariate of Lac Albert |
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