Date | Bishop | Bishop Jubilarian |
| 2012.01.01 | 25 years as priest |  Bishop Tomé Ferreira da Silva |
| 2012.01.03 | 25 years as priest |  Bishop Edward Matthew Rice |
| 2012.01.06 | 50 years as priest | Archbishop Étienne Nguyễn Như Thể |
| 2012.01.06 | 50 years as priest | Bishop Rodrigo Orlando Cabrera Cuéllar |
| 2012.01.06 | 25 years as bishop | Cardinal Gilberto Agustoni |
| 2012.01.06 | 25 years as bishop | Bishop George Biguzzi, S.X. |
| 2012.01.06 | 25 years as bishop |  Bishop Julio Edgar Cabrera Ovalle |
| 2012.01.06 | 25 years as bishop | Bishop Emmanuel A. Mapunda |
| 2012.01.06 | 25 years as bishop | Bishop William Jerome McCormack |
| 2012.01.06 | 50 years as bishop | Bishop José Mauro Ramalho de Alarcón Santiago |
| 2012.01.06 | 25 years as bishop | Bishop Dominic Su Haw Chiu (蘇孝洲) |
| 2012.01.06 | 25 years as bishop | Bishop Joseph Sangval Surasarang |
| 2012.01.10 | 25 years as priest | Bishop Alphonse Liguori Chaupa |
| 2012.01.10 | 25 years as priest |  Bishop Carmelo Cuttitta |
| 2012.01.10 | 60 years as priest | Bishop Thomas Vose Daily |
| 2012.01.11 | 25 years as bishop | Bishop Martin Luluga |
| 2012.01.14 | 50 years as priest | Archbishop Józef Kowalczyk |
| 2012.01.15 | 25 years as bishop |  Archbishop Ernesto Antolin Salgado |
| 2012.01.20 | 60 years as priest | Bishop José Francisco Moreira dos Santos, O.F.M. Cap. |
| 2012.01.25 | 25 years as priest |  Archbishop Victor Lyngdoh |
| 2012.01.25 | 40 years as bishop | Archbishop Benedito de Ulhôa Vieira |
| 2012.01.25 | 25 years as bishop |  Archbishop Louis Nerval Kébreau, S.D.B. |
| 2012.01.25 | 40 years as bishop | Bishop René Henry Gracida |
| 2012.01.25 | 25 years as bishop |  Bishop Joseph Lafontant |
| 2012.01.26 | 50 years as priest |  Bishop Louis Mbwôl-Mpasi, O.M.I. |
| 2012.01.26 | 40 years as bishop | Bishop Louis Edward Gelineau |
| 2012.01.27 | 60 years as priest | Bishop Lorenzo León Alvarado, O. de M. |
| 2012.01.28 | 50 years as priest | Archbishop William Joseph Kurtz, S.V.D. |
| 2012.01.31 | 25 years as priest |  Bishop Bernabé de Jesús Sagastume Lemus, O.F.M. Cap. |
| 2012.02.01 | 25 years as bishop | Bishop Adalberto Arturo Rosat, O.F.M. |
| 2012.02.02 | 25 years as priest |  Archbishop José Miguel Gómez Rodríguez |
| 2012.02.02 | 40 years as bishop | Bishop Joseph Francis Maguire |
| 2012.02.07 | 25 years as bishop | Bishop Karl Reger |
| 2012.02.10 | 50 years as priest | Archbishop Oscar Valero Cruz |
| 2012.02.11 | 50 years as priest | Bishop François Colímon, S.M.M. |
| 2012.02.11 | 50 years as priest | Bishop Anthony Hampden Dickson |
| 2012.02.11 | 50 years as bishop | Bishop Gregorio Garavito Jiménez, S.M.M. |
| 2012.02.13 | 40 years as bishop | Archbishop Charles-Amarin Brand |
| 2012.02.13 | 40 years as bishop | Archbishop Joseph Powathil |
| 2012.02.13 | 40 years as bishop |  Archbishop Carlos José Ruiseco Vieira |
| 2012.02.13 | 40 years as bishop | Bishop Joannes Baptist Matthijs Gijsen |
| 2012.02.13 | 40 years as bishop | Bishop Efraím Basílio Krevey, O.S.B.M. |
| 2012.02.15 | 25 years as bishop |  Bishop Piotr Skucha |
| 2012.02.16 | 50 years as priest |  Archbishop Patrick Altham Kelly |
| 2012.02.17 | 60 years as priest | Bishop John Adel Elya |
| 2012.02.20 | 25 years as priest |  Archbishop Bejoy Nicephorus D’Cruze, O.M.I. |
| 2012.02.20 | 80 years as priest | Bishop Antoine Nguyễn Văn Thiện |
| 2012.02.22 | 25 years as bishop | Bishop Joseph Pastor Neelankavil, C.M.I. |
| 2012.02.23 | 25 years as bishop |  Bishop Armando Xavier Ochoa |
| 2012.02.24 | 25 years as bishop |  Bishop Jean-Louis Plouffe |
| 2012.02.25 | 25 years as bishop | Bishop George Edward Rueger |
| 2012.02.26 | 25 years as bishop | Bishop Mathew Vattackuzhy |
| 2012.02.28 | 25 years as bishop | Bishop José Ramón Gurruchaga Ezama, S.D.B. |
| 2012.03.01 | 25 years as bishop |  Bishop Lucas Kerketta, S.V.D. |
| 2012.03.02 | 25 years as bishop | Archbishop Daniel Mark Buechlein, O.S.B. |
| 2012.03.04 | 50 years as priest | Bishop Alberto Jara Franzoy |
| 2012.03.08 | 60 years as priest | Archbishop Joseph Mercieca |
| 2012.03.08 | 60 years as priest |  Bishop Ignacio Nazareno Trejos Picado |
| 2012.03.12 | 25 years as bishop | Archbishop Thumma Bala |
| 2012.03.13 | 75 years as priest | Bishop Odorico Leovigildo Sáiz Pérez, O.F.M. |
| 2012.03.15 | 70 years as priest | Bishop Javier Naranjo Villegas |
| 2012.03.16 | 60 years as priest | Bishop Francesco Saverio Salerno |
| 2012.03.16 | 25 years as bishop | Bishop Leopoldo Sumaylo Tumulak |
| 2012.03.17 | 50 years as priest |  Bishop Enzo Dieci |
| 2012.03.17 | 50 years as priest |  Bishop John Magee, S.P.S. |
| 2012.03.17 | 25 years as bishop |  Bishop John Magee, S.P.S. |
| 2012.03.17 | 25 years as bishop |  Bishop Leonardo Yuzon Medroso |
| 2012.03.18 | 50 years as priest |  Cardinal Antonio Maria Vegliò |
| 2012.03.18 | 50 years as priest | Bishop Adam Lepa |
| 2012.03.18 | 40 years as bishop | Bishop Symphorian Thomas Keeprath, O.F.M. Cap. |
| 2012.03.19 | 25 years as priest |  Bishop Adolfo Miguel Castaño Fonseca |
| 2012.03.19 | 50 years as priest | Bishop Joseph Atsumi Misue (ヨゼフ 三末篤實) |
| 2012.03.19 | 25 years as bishop |  Archbishop Tito Solari Capellari, S.D.B. |
| 2012.03.19 | 50 years as bishop | Bishop Roberto Reinaldo Cáceres González |
| 2012.03.21 | 25 years as priest |  Archbishop Gustavo Bombín Espino, O.SS.T. |
| 2012.03.21 | 25 years as bishop | Bishop Jacques Berthelet, C.S.V. |
| 2012.03.25 | 50 years as priest |  Bishop ‘Ad Abikaram |
| 2012.03.25 | 50 years as priest | Bishop Alfonso Milián Sorribas |
| 2012.03.25 | 25 years as bishop | Bishop Raffaele Castielli |
| 2012.03.25 | 25 years as bishop |  Bishop Julio María Elías Montoya, O.F.M. |
| 2012.03.25 | 25 years as bishop | Bishop Héctor Luis Gutiérrez Pabón |
| 2012.03.25 | 25 years as bishop | Bishop Stanisław Kędziora |
| 2012.03.25 | 40 years as bishop | Bishop Manfred Müller |
| 2012.03.25 | 40 years as bishop | Bishop Rudolf Schmid |
| 2012.03.29 | 60 years as priest |  Bishop Jacques Marie Sébastien de Saint-Blanquat |
| 2012.03.29 | 60 years as priest | Bishop Protacio Guevarra Gungon |
| 2012.03.29 | 60 years as priest | Bishop Paul-Werner Scheele |
| 2012.03.29 | 25 years as bishop | Bishop Camilo Diaz Gregorio |
| 2012.04.01 | 25 years as priest |  Bishop Jean Marie Vũ Tất |
| 2012.04.01 | 25 years as bishop | Bishop William Edwin Franklin |
| 2012.04.04 | 25 years as bishop | Archbishop Bruno Schettino |
| 2012.04.05 | 25 years as bishop | Bishop José Luís Azcona Hermoso, O.A.R. |
| 2012.04.07 | 50 years as priest | Bishop Luis Morgan Casey |
| 2012.04.07 | 50 years as priest | Bishop Dinualdo Destajo Gutierrez |
| 2012.04.07 | 50 years as priest |  Bishop Vicente Macanan Navarra |
| 2012.04.07 | 50 years as priest | Bishop Donald Walter Trautman |
| 2012.04.08 | 50 years as priest | Bishop Francis Némé Baïssari |
| 2012.04.08 | 50 years as priest | Bishop André Louis Fort |
| 2012.04.08 | 40 years as bishop | Bishop Libardo Ramírez Gómez |
| 2012.04.10 | 25 years as priest |  Archbishop Ricardo Lingan Baccay |
| 2012.04.12 | 60 years as priest | Cardinal Luigi De Magistris |
| 2012.04.12 | 60 years as priest | Archbishop Pier Giacomo De Nicolò |
| 2012.04.12 | 60 years as priest | Archbishop Paolo Giglio (吉立友) |
| 2012.04.12 | 25 years as bishop | Bishop Amédée Grab, O.S.B. |
| 2012.04.14 | 50 years as priest |  Bishop Pierre Jean Marie Marcel Molères |
| 2012.04.18 | 50 years as priest |  Cardinal Sigitas Tamkevičius, S.J. |
| 2012.04.18 | 75 years as priest | Cardinal Ersilio Tonini |
| 2012.04.19 | 25 years as bishop |  Bishop Jan De Bie |
| 2012.04.21 | 70 years as priest | Cardinal Giovanni Cheli |
| 2012.04.22 | 50 years as priest | Bishop Amancio Escapa Aparicio, O.C.D. |
| 2012.04.22 | 40 years as bishop | Bishop Celso Pereira de Almeida, O.P. |
| 2012.04.23 | 50 years as priest | Archbishop Luis Abilio Sebastiani Aguirre, S.M. |
| 2012.04.25 | 50 years as priest |  Bishop Álvaro Efrén Rincón Rojas, C.SS.R. |
| 2012.04.25 | 25 years as bishop | Bishop Gerard Sithunywa Ndlovu |
| 2012.04.26 | 25 years as bishop |  Archbishop Simon-Victor Tonyé Bakot |
| 2012.04.26 | 25 years as bishop | Bishop Kurt Krenn |
| 2012.04.26 | 25 years as bishop | Bishop Gabriel Simo |
| 2012.04.27 | 25 years as bishop | Archbishop Alberto Tricarico |
| 2012.04.28 | 50 years as priest | Bishop Mathew Cheriankunnel, P.I.M.E. |
| 2012.04.29 | 50 years as priest | Bishop Frangkiskos Papamanolis, O.F.M. Cap. |
| 2012.04.30 | 50 years as priest | Archbishop George Hugh Niederauer |
| 2012.05.01 | 50 years as priest |  Cardinal Roger Michael Mahony |
| 2012.05.01 | 60 years as priest | Bishop Raymond Emil Goedert |
| 2012.05.01 | 40 years as bishop | Bishop Jean-Charles Thomas |
| 2012.05.02 | 25 years as priest |  Bishop William Terrence McGrattan |
| 2012.05.05 | 25 years as bishop |  Bishop Roger Francis Crispian Hollis |
| 2012.05.07 | 40 years as bishop |  Bishop Juan Luis Ysern de Arce |
| 2012.05.08 | 25 years as priest |  Bishop Martin David Holley |
| 2012.05.09 | 25 years as priest |  Bishop Neethinathan Anthonisamy |
| 2012.05.09 | 25 years as priest |  Bishop Thomas Anthony Daly |
| 2012.05.09 | 75 years as priest | Bishop José de Jesús Garcia Ayala |
| 2012.05.09 | 25 years as bishop |  Archbishop Washington Cruz, C.P. |
| 2012.05.10 | 60 years as priest | Archbishop Francis Bible Schulte |
| 2012.05.10 | 60 years as priest | Bishop Louis Anthony DeSimone |
| 2012.05.11 | 60 years as priest | Archbishop Maroun Khoury Sader |
| 2012.05.11 | 40 years as bishop | Bishop Erwin Hecht, O.M.I. |
| 2012.05.12 | 50 years as priest | Bishop Arthur Nicholas Tafoya |
| 2012.05.13 | 25 years as priest |  Archbishop Luc Ravel, C.R.S.V. |
| 2012.05.13 | 40 years as bishop | Cardinal Rodolfo Ignacio Quezada Toruño |
| 2012.05.13 | 25 years as bishop |  Bishop Braulio Sáez García, O.C.D. |
| 2012.05.15 | 25 years as priest |  Archbishop Murray Chatlain |
| 2012.05.16 | 25 years as priest |  Bishop Frank Joseph Caggiano |
| 2012.05.17 | 25 years as bishop | Bishop Alphonsus Flavian D’Souza, S.J. |
| 2012.05.19 | 50 years as priest | Bishop Edward Peter Cullen |
| 2012.05.19 | 25 years as priest |  Bishop Silvio Siripong Charatsri |
| 2012.05.19 | 50 years as priest |  Bishop Kenneth Donald Steiner |
| 2012.05.20 | 50 years as priest | Bishop Józef Zawitkowski |
| 2012.05.20 | 25 years as bishop | Bishop Joseph Victor Adamec |
| 2012.05.21 | 25 years as bishop | Cardinal George Pell |
| 2012.05.21 | 40 years as bishop | Cardinal Raúl Eduardo Vela Chiriboga |
| 2012.05.21 | 40 years as bishop |  Bishop Augusto César Alves Ferreira da Silva, C.M. |
| 2012.05.21 | 25 years as bishop |  Bishop Peter Joseph Connors |
| 2012.05.22 | 60 years as priest | Bishop Cesar Castro Raval, S.V.D. |
| 2012.05.23 | 25 years as priest |  Archbishop William Charles Skurla |
| 2012.05.23 | 25 years as priest |  Archbishop Richard William Smith |
| 2012.05.23 | 25 years as priest |  Bishop Marek Mendyk |
| 2012.05.24 | 25 years as priest |  Bishop Wiesław Lechowicz |
| 2012.05.24 | 60 years as priest | Bishop Juan Conway McNabb, O.S.A. |
| 2012.05.25 | 60 years as priest | Bishop Michel Hrynchyshyn, C.SS.R. |
| 2012.05.26 | 60 years as priest | Bishop David Edward Foley |
| 2012.05.26 | 50 years as priest |  Bishop Vital Massé |
| 2012.05.27 | 40 years as bishop | Bishop José Agustín Ganuza García, O.A.R. |
| 2012.05.28 | 25 years as priest |  Archbishop Marek Solczyński |
| 2012.05.28 | 25 years as bishop |  Archbishop José María Arancibia |
| 2012.05.28 | 25 years as bishop |  Bishop Martin Gächter |
| 2012.05.30 | 25 years as priest |  Archbishop Charles Coleman Thompson |
| 2012.05.30 | 25 years as priest |  Bishop Bryan Joseph Bayda, C.SS.R. |
| 2012.05.30 | 70 years as priest | Bishop Silvério Jarbas Paulo de Albuquerque, O.F.M. |
| 2012.05.30 | 70 years as priest | Bishop Maffeo Giovanni Ducoli |
| 2012.05.30 | 25 years as priest |  Bishop Rogath Fundimoya Kimaryo, C.S.Sp. |
| 2012.05.31 | 60 years as priest | Archbishop Elías Yanes Alvarez |
| 2012.05.31 | 60 years as priest | Bishop David Arias Pérez, O.A.R. |
| 2012.05.31 | 60 years as priest | Bishop Pedro Casaldáliga Plá, C.M.F. |
| 2012.05.31 | 50 years as priest | Bishop József Tempfli |
| 2012.06.03 | 25 years as bishop | Bishop John Basil Meeking |
| 2012.06.07 | 60 years as priest | Bishop Anthony Gerard Bosco |
| 2012.06.07 | 60 years as priest | Bishop Eugène Philippe LaRocque |
| 2012.06.07 | 60 years as priest |  Bishop Angelo Mascheroni |
| 2012.06.07 | 25 years as priest | Bishop Castor Paul Msemwa |
| 2012.06.07 | 60 years as priest | Bishop Rafael Torija de la Fuente |
| 2012.06.10 | 50 years as priest |  Archbishop Georges Basilios Casmoussa |
| 2012.06.10 | 50 years as priest |  Archbishop Stanisław Wojciech Wielgus |
| 2012.06.10 | 50 years as priest | Archbishop Hanna Zora |
| 2012.06.10 | 50 years as bishop | Archbishop Robert-Casimir Tonyui Messan Dosseh-Anyron |
| 2012.06.11 | 25 years as bishop | Bishop John Baptist Sequeira |
| 2012.06.12 | 60 years as priest | Bishop John Aloysius Mone |
| 2012.06.12 | 25 years as bishop |  Bishop Pierre Joseph Paul Morissette |
| 2012.06.13 | 25 years as priest |  Archbishop John Francis Sherrington |
| 2012.06.13 | 50 years as priest | Bishop Silvano Montevecchi |
| 2012.06.13 | 25 years as bishop |  Archbishop Francesco Cacucci |
| 2012.06.14 | 60 years as priest | Archbishop Stephen Sulyk |
| 2012.06.14 | 25 years as priest |  Archbishop Cyril Vasil’, S.J. |
| 2012.06.16 | 50 years as priest | Bishop Jacques Berthelet, C.S.V. |
| 2012.06.16 | 50 years as priest | Bishop Martinus Petrus Maria Muskens |
| 2012.06.16 | 50 years as priest |  Bishop John Anthony Rawsthorne |
| 2012.06.16 | 25 years as priest |  Bishop Peter Rusnák |
| 2012.06.17 | 50 years as priest | Bishop Christopher Jones |
| 2012.06.20 | 25 years as priest | Bishop Joseph Befe Ateba |
| 2012.06.20 | 25 years as priest | Bishop Jean-Marie Benoît Bala |
| 2012.06.21 | 70 years as priest | Archbishop Ignacy Marcin Tokarczuk |
| 2012.06.23 | 25 years as priest |  Bishop Isabelo Caiban Abarquez |
| 2012.06.24 | 50 years as priest | Archbishop Marian Gołębiewski |
| 2012.06.24 | 60 years as priest |  Bishop Jacques Joseph Marie Despierre, Prado |
| 2012.06.24 | 50 years as priest | Bishop Gerard Alfons Kusz |
| 2012.06.24 | 60 years as priest | Bishop Manfred Müller |
| 2012.06.24 | 25 years as priest | Bishop Jan Niemiec |
| 2012.06.24 | 50 years as priest | Bishop Eugène Tremblay |
| 2012.06.24 | 40 years as bishop | Bishop Vinzenz Guggenberger |
| 2012.06.25 | 25 years as priest |  Bishop Jacob Venance Koda |
| 2012.06.26 | 25 years as bishop |  Archbishop John Lee Hiong Fun-Yit Yaw (李奕瑶) |
| 2012.06.27 | 25 years as priest |  Archbishop Pascal Jean Marcel Wintzer |
| 2012.06.27 | 25 years as bishop | Bishop Rodolfo Francisco Bobadilla Mata, C.M. |
| 2012.06.28 | 60 years as priest | Archbishop Franco Festorazzi |
| 2012.06.28 | 25 years as priest | Bishop Vincent Matthew Darius, O.P. |
| 2012.06.28 | 25 years as priest |  Bishop Ivo Muser |
| 2012.06.28 | 50 years as priest |  Bishop Emilio Patriarca |
| 2012.06.28 | 70 years as priest | Bishop Jorge Scarso, O.F.M. Cap. |
| 2012.06.28 | 25 years as bishop | Bishop Marcel Paul Herriot |
| 2012.06.29 | 50 years as priest |  Cardinal Francesco Coccopalmerio |
| 2012.06.29 | 60 years as priest | Cardinal Francesco Marchisano |
| 2012.06.29 | 60 years as priest | Cardinal Elio Sgreccia |
| 2012.06.29 | 50 years as priest |  Archbishop Cyrille Salim Bustros, M.S.P. |
| 2012.06.29 | 50 years as priest |  Archbishop Giuseppe Molinari |
| 2012.06.29 | 50 years as priest | Archbishop Jesús Gervasio Pérez Rodríguez, O.F.M. |
| 2012.06.29 | 25 years as priest |  Archbishop Petar Rajič |
| 2012.06.29 | 60 years as priest | Bishop Giacomo Barabino |
| 2012.06.29 | 50 years as priest |  Bishop Martino Canessa |
| 2012.06.29 | 60 years as priest | Bishop Giacomo Capuzzi |
| 2012.06.29 | 50 years as priest | Bishop Lorenzo Cárdenas Aregullín |
| 2012.06.29 | 60 years as priest | Bishop Michael Joseph Cleary, C.S.Sp. |
| 2012.06.29 | 50 years as priest |  Bishop Carlo Ellena |
| 2012.06.29 | 60 years as priest | Bishop Alberto Johannes Först, O. Carm. |
| 2012.06.29 | 50 years as priest | Bishop Pietro Gabrielli Zen, S.D.B. |
| 2012.06.29 | 50 years as priest |  Bishop Brian Heenan |
| 2012.06.29 | 25 years as priest |  Bishop Anton Jamnik |
| 2012.06.29 | 50 years as priest | Bishop Dominique Kimpinde Amando |
| 2012.06.29 | 50 years as priest |  Bishop Luis Alfonso Márquez Molina, C.I.M. |
| 2012.06.29 | 60 years as priest | Bishop John C. O’Riordan, C.S.Sp. |
| 2012.06.29 | 60 years as priest | Bishop Natalino Pescarolo |
| 2012.06.29 | 25 years as priest |  Bishop Ägidius Johann Zsifkovics |
| 2012.06.29 | 25 years as bishop |  Archbishop Brendan Michael O’Brien |
| 2012.06.30 | 50 years as priest | Bishop Denis George Browne |
| 2012.06.30 | 50 years as priest |  Bishop Xavier Gilles de Maupeou d’Ableiges |
| 2012.06.30 | 60 years as priest | Bishop François-Marie-Christian Favreau |
| 2012.06.30 | 50 years as priest |  Bishop Lucien Fruchaud |
| 2012.06.30 | 50 years as priest | Bishop Bellino Giusto Ghirard |
| 2012.06.30 | 50 years as priest |  Bishop Hans-Georg Koitz |
| 2012.07.01 | 50 years as priest |  Bishop Ramón Calderón Batres |
| 2012.07.01 | 50 years as priest |  Bishop Gabriel Antonio Camilo González |
| 2012.07.01 | 50 years as priest | Bishop Bartolomej Urbanec |
| 2012.07.01 | 25 years as bishop | Bishop Rudolf Müller |
| 2012.07.04 | 25 years as priest |  Bishop Felix Femi Ajakaye |
| 2012.07.04 | 25 years as priest |  Bishop Nuno Brás da Silva Martins |
| 2012.07.04 | 25 years as priest |  Bishop Charles Michael Hammawa |
| 2012.07.04 | 25 years as bishop | Bishop Endre Gyulay |
| 2012.07.05 | 25 years as bishop | Archbishop Eurico dos Santos Veloso |
| 2012.07.05 | 25 years as bishop | Bishop Julio Ojeda Pascual, O.F.M. |
| 2012.07.06 | 60 years as priest | Bishop Dante Frasnelli Tarter, O.S.J. |
| 2012.07.08 | 50 years as priest | Bishop Hugh Christopher Budd |
| 2012.07.08 | 50 years as priest |  Bishop Antônio Gaspar |
| 2012.07.08 | 50 years as priest | Bishop Aloysius Jousten |
| 2012.07.08 | 50 years as priest |  Bishop Valter Župan |
| 2012.07.09 | 50 years as priest | Bishop Reginald Michael Cawcutt |
| 2012.07.11 | 25 years as priest |  Archbishop Joseph Atanga, S.J. |
| 2012.07.11 | 25 years as bishop | Bishop István Konkoly |
| 2012.07.12 | 25 years as priest |  Archbishop Yaser Rasmi Hanna Al-Ayyash |
| 2012.07.12 | 25 years as bishop |  Bishop Serafino Faustino Spreafico, O.F.M. Cap. |
| 2012.07.13 | 60 years as priest | Cardinal Carlo Maria Martini, S.J. |
| 2012.07.13 | 60 years as priest | Archbishop Gabino Díaz Merchán |
| 2012.07.13 | 60 years as priest | Bishop Colin Cameron Davies, M.H.M. |
| 2012.07.13 | 60 years as priest | Bishop Antonino Orrù |
| 2012.07.15 | 50 years as priest | Bishop Giuseppe Rocco Favale |
| 2012.07.15 | 50 years as priest | Bishop Diogo Johannes Antonius Reesink, O.F.M. |
| 2012.07.15 | 50 years as priest | Bishop Irineu Silvio Wilges, O.F.M. |
| 2012.07.16 | 60 years as priest | Bishop Georges Abi-Saber, O.L.M. |
| 2012.07.18 | 25 years as priest |  Archbishop Ibrahim Michael Ibrahim, B.S. |
| 2012.07.18 | 25 years as priest |  Bishop Jörg Michael Peters |
| 2012.07.18 | 25 years as bishop | Bishop Anthony Leopold Raymond Peiris |
| 2012.07.19 | 25 years as bishop | Archbishop George Riashi, B.C. |
| 2012.07.20 | 60 years as priest | Bishop Pedro Luís António |
| 2012.07.20 | 60 years as priest | Bishop Franz Josef Kuhnle |
| 2012.07.20 | 60 years as priest | Bishop Fulgence Werner Le Roy, O.S.B. Subl. |
| 2012.07.21 | 50 years as priest |  Bishop David Louis Walker |
| 2012.07.22 | 50 years as priest |  Archbishop José Guadalupe Martín Rábago |
| 2012.07.22 | 50 years as priest | Archbishop Giovanni Battista Morandini |
| 2012.07.22 | 50 years as priest | Bishop Jérôme Owono-Mimboe |
| 2012.07.22 | 25 years as priest |  Bishop Stephanus Tri Bửu Thiên |
| 2012.07.24 | 70 years as priest | Bishop Gregorio Garavito Jiménez, S.M.M. |
| 2012.07.25 | 60 years as priest |  Bishop Ernst Franz Gerd Werner Dicke |
| 2012.07.25 | 50 years as priest | Bishop Vladimír Filo |
| 2012.07.25 | 25 years as priest |  Bishop Justin Kientega |
| 2012.07.25 | 60 years as priest | Bishop Vincenzo Zarri |
| 2012.07.25 | 40 years as bishop | Archbishop Medardo Luis Luzardo Romero |
| 2012.07.25 | 25 years as bishop | Archbishop István Seregély |
| 2012.07.25 | 25 years as bishop |  Bishop Leo Murphy Drona, S.D.B. |
| 2012.07.25 | 40 years as bishop | Bishop Miguel Irízar Campos, C.P. |
| 2012.07.25 | 50 years as bishop | Bishop Jacques Landriault |
| 2012.07.25 | 25 years as bishop |  Bishop Romeo Tovar Astorga, O.F.M. |
| 2012.07.26 | 70 years as priest | Bishop John Baptist Liu Jing-shan (劉靜山) |
| 2012.07.26 | 50 years as priest | Bishop Franz Vorrath |
| 2012.07.29 | 50 years as priest | Cardinal Julio Terrazas Sandoval, C.SS.R. |
| 2012.07.29 | 50 years as priest |  Archbishop Carlo Liberati |
| 2012.07.29 | 25 years as bishop |  Bishop Reynald Rouleau, O.M.I. |
| 2012.08.02 | 25 years as priest |  Cardinal Ignace Bessi Dogbo |
| 2012.08.02 | 25 years as bishop | Bishop Hilarius Moa Nurak, S.V.D. |
| 2012.08.03 | 60 years as priest | Archbishop Eduardo Vicente Mirás |
| 2012.08.06 | 60 years as priest | Bishop Max Georg von Twickel |
| 2012.08.08 | 25 years as priest | Archbishop Nicodème Anani Barrigah-Bénissan |
| 2012.08.08 | 25 years as priest |  Bishop Callistus Valentine Chukwuma Onaga |
| 2012.08.08 | 25 years as priest |  Bishop Youlo Alexis Touabli |
| 2012.08.08 | 25 years as bishop |  Bishop Bosco Penha |
| 2012.08.09 | 25 years as bishop | Bishop Joseph Zong Huai-de (宗懷德) |
| 2012.08.11 | 50 years as priest |  Bishop Manuel Antonio Valarezo Luzuriaga, O.F.M. |
| 2012.08.12 | 50 years as priest | Bishop José de Jesús Nuñez Viloria |
| 2012.08.14 | 25 years as priest |  Bishop Tomislav Koljatic Maroevic |
| 2012.08.15 | 50 years as priest |  Archbishop Luigi Travaglino |
| 2012.08.15 | 60 years as priest | Bishop Arturo Lona Reyes |
| 2012.08.15 | 25 years as bishop | Bishop Amando Samo |
| 2012.08.16 | 25 years as bishop | Archbishop Lawrence Patrick Henry |
| 2012.08.19 | 50 years as priest | Bishop José Alberto Rozo Gutiérrez, S.M.M. |
| 2012.08.19 | 25 years as bishop |  Bishop Jose Ricare Manguiran |
| 2012.08.20 | 60 years as priest | Bishop Paulo Antonino Mascarenhas Roxo, O. Praem. |
| 2012.08.20 | 40 years as bishop | Bishop Philip Sulumeti |
| 2012.08.22 | 50 years as bishop | Cardinal Duraisamy Simon Lourdusamy |
| 2012.08.22 | 50 years as bishop | Bishop Anselmo Zarza Bernal |
| 2012.08.23 | 25 years as bishop | Bishop Thomas Bhalerao, S.J. |
| 2012.08.24 | 60 years as priest | Archbishop Ignatius Paul Pinto |
| 2012.08.24 | 60 years as priest | Bishop Paulius Antanas Baltakis, O.F.M. |
| 2012.08.24 | 60 years as priest | Bishop Maxwell Valentine Noronha |
| 2012.08.24 | 25 years as bishop |  Archbishop Jerome George Hanus, O.S.B. |
| 2012.08.24 | 25 years as bishop |  Bishop Leonard William Kenney, C.P. |
| 2012.08.26 | 50 years as priest | Archbishop Luis Sáinz Hinojosa, O.F.M. |
| 2012.08.26 | 50 years as priest | Bishop José Roberto López Londoño |
| 2012.08.27 | 40 years as bishop | Bishop Massimo Giustetti |
| 2012.08.27 | 40 years as bishop | Bishop Patrick Augustine Kalilombe, M. Afr. |
| 2012.08.29 | 25 years as priest |  Bishop Edney Gouvêa Mattoso |
| 2012.08.29 | 25 years as priest |  Bishop Elias Khoury Sleman |
| 2012.08.30 | 50 years as bishop | Archbishop Raymond Gerhardt Hunthausen |
| 2012.08.30 | 25 years as bishop | Bishop Edward Francis |
| 2012.09.03 | 25 years as priest |  Archbishop Youssef Antoine Soueif |
| 2012.09.03 | 25 years as bishop | Archbishop John Joseph Myers |
| 2012.09.05 | 25 years as priest |  Bishop Gerard Johannes Nicolaas de Korte |
| 2012.09.05 | 25 years as priest |  Bishop Milton Kenan Júnior |
| 2012.09.05 | 25 years as bishop |  Cardinal Beniamino Stella |
| 2012.09.05 | 40 years as bishop | Bishop Andrew Joseph McDonald |
| 2012.09.05 | 25 years as bishop | Bishop René Séjourné |
| 2012.09.06 | 25 years as priest |  Bishop Valdemir Ferreira dos Santos |
| 2012.09.06 | 60 years as priest | Bishop Peter Baptist Tadamaro Ishigami (ペトロ・バプティスタ 石神 忠真郎), O.F.M. Cap. |
| 2012.09.06 | 25 years as bishop | Archbishop John Wu Shi-zhen (吳仕珍) |
| 2012.09.06 | 25 years as bishop | Bishop Jérôme Owono-Mimboe |
| 2012.09.08 | 50 years as priest | Archbishop Jean-Marie Untaani Compaoré |
| 2012.09.08 | 50 years as priest | Archbishop Gregory Ebolawola Kpiebaya |
| 2012.09.08 | 50 years as priest |  Archbishop Anselme Titianma Sanon |
| 2012.09.08 | 50 years as priest | Bishop Wenceslas Compaoré |
| 2012.09.08 | 40 years as bishop |  Archbishop Ignacio José Gómez Aristizábal |
| 2012.09.09 | 50 years as priest | Archbishop James Spaita |
| 2012.09.10 | 40 years as bishop | Bishop Roberto Antonio Dávila Uzcátegui |
| 2012.09.10 | 40 years as bishop | Bishop Herman Ferdinandus Maria Münninghoff, O.F.M. |
| 2012.09.12 | 50 years as bishop | Bishop Myles McKeon |
| 2012.09.14 | 60 years as priest | Bishop Paul Shinichi Itonaga (パウロ 糸永真一) |
| 2012.09.17 | 25 years as priest |  Archbishop Mieczysław Mokrzycki |
| 2012.09.17 | 40 years as bishop | Bishop Matthias Joseph Isuja |
| 2012.09.17 | 40 years as bishop | Bishop Estanislau Amadeu Kreutz |
| 2012.09.19 | 25 years as bishop | Bishop Giacomo Babini |
| 2012.09.20 | 25 years as bishop |  Bishop Claude Jean Pierre Dagens |
| 2012.09.22 | 50 years as priest |  Archbishop José María Arancibia |
| 2012.09.22 | 50 years as priest | Archbishop Eurico dos Santos Veloso |
| 2012.09.22 | 50 years as priest | Bishop Horacio Ernesto Benites Astoul |
| 2012.09.22 | 50 years as priest |  Bishop Waldemar Chaves de Araújo |
| 2012.09.22 | 50 years as priest | Bishop Omar Félix Colomé |
| 2012.09.22 | 50 years as priest | Bishop Héctor Luis Gutiérrez Pabón |
| 2012.09.30 | 50 years as priest |  Bishop Lucien Prosper Ernest Fischer, C.S.Sp. |
| 2012.10.03 | 25 years as priest |  Archbishop Augustine Obiora Akubeze |
| 2012.10.03 | 50 years as priest | Archbishop Joseph Powathil |
| 2012.10.03 | 25 years as bishop | Bishop Gioacchino Illiano |
| 2012.10.04 | 25 years as priest | Bishop Miguel Olaortúa Laspra, O.S.A. |
| 2012.10.04 | 25 years as bishop |  Archbishop Francis Kallarakal |
| 2012.10.04 | 25 years as bishop |  Bishop Guy Claude Bagnard |
| 2012.10.05 | 60 years as priest | Bishop Joaquim Rufino do Rêgo |
| 2012.10.07 | 50 years as priest | Bishop Kurt Krenn |
| 2012.10.07 | 50 years as priest |  Bishop Paolo Urso |
| 2012.10.07 | 40 years as bishop | Bishop Leovigildo López Fitoria, C.M. |
| 2012.10.10 | 25 years as priest |  Archbishop Antonio Guido Filipazzi |
| 2012.10.10 | 25 years as priest |  Bishop Stephan Ackermann |
| 2012.10.10 | 25 years as priest |  Bishop Jean-Marie Le Vert |
| 2012.10.11 | 70 years as priest | Bishop Maurice Paul Delorme, Prado |
| 2012.10.11 | 25 years as bishop | Bishop Pierre René Ferdinand Raffin, O.P. |
| 2012.10.12 | 25 years as bishop |  Archbishop João Bosco Óliver de Faria |
| 2012.10.12 | 40 years as bishop |  Bishop Victorio Oliver Domingo |
| 2012.10.15 | 40 years as bishop | Cardinal José Manuel Estepa Llaurens |
| 2012.10.15 | 40 years as bishop | Bishop Edmond-Marie-Henri Abelé |
| 2012.10.17 | 25 years as priest |  Bishop Raúl Antonio Martínez Paredes |
| 2012.10.18 | 25 years as bishop | Bishop Marco Virgilio Ferrari |
| 2012.10.22 | 40 years as bishop | Bishop Alberto Iniesta Jiménez |
| 2012.10.24 | 25 years as priest |  Bishop Mikaël Antoine Mouradian, I.C.P.B. |
| 2012.10.26 | 60 years as priest | Cardinal Darío Castrillón Hoyos |
| 2012.10.27 | 25 years as priest |  Bishop Joseph Mairura Okemwa |
| 2012.10.28 | 50 years as priest | Bishop John Franklin Meldon Hine |
| 2012.10.28 | 40 years as bishop | Bishop José María Setién Alberro |
| 2012.11.05 | 40 years as bishop | Archbishop Peter Yariyok Jatau |
| 2012.11.07 | 25 years as bishop |  Cardinal Giovanni Battista Re |
| 2012.11.21 | 25 years as priest |  Cardinal Daniel Fernando Sturla Berhouet, S.D.B. |
| 2012.11.24 | 25 years as priest |  Archbishop Hugo Alberto Torres Marín |
| 2012.11.28 | 25 years as bishop |  Cardinal Giuseppe Bertello |
| 2012.11.29 | 25 years as priest |  Archbishop Oscar Omar Aparicio Céspedes |
| 2012.11.30 | 60 years as priest | Bishop José Goncalves Heleno |
| 2012.11.30 | 60 years as priest | Bishop Jacó Roberto Hilgert |
| 2012.11.30 | 40 years as bishop | Archbishop Paul Ri Moun-hi (이문희 바오로 / 李文熙) |
| 2012.12.01 | 25 years as bishop | Bishop Maximiano Tuazon Cruz |
| 2012.12.02 | 50 years as priest | Archbishop Luis Morales Reyes |
| 2012.12.04 | 25 years as priest |  Bishop Jean Bosco Baremes, S.M. |
| 2012.12.06 | 25 years as priest |  Bishop Otacílio Luziano Da Silva |
| 2012.12.07 | 25 years as bishop |  Archbishop Giuseppe Mani |
| 2012.12.07 | 25 years as bishop |  Bishop Luca Brandolini, C.M. |
| 2012.12.08 | 25 years as priest |  Archbishop Joseph Ðặng Ðức Ngân |
| 2012.12.08 | 25 years as priest |  Bishop Héctor Eduardo Vera Colona |
| 2012.12.08 | 60 years as priest | Bishop Francisco Manuel Vieira |
| 2012.12.08 | 25 years as bishop | Archbishop Enrico Masseroni |
| 2012.12.08 | 25 years as bishop | Bishop Raymond Saw Po Ray |
| 2012.12.12 | 25 years as priest |  Bishop Remigiose Inchananiyil |
| 2012.12.13 | 25 years as priest |  Bishop Damián Santiago Bitar |
| 2012.12.13 | 25 years as bishop |  Archbishop Thierry Romain Camille Jordan |
| 2012.12.13 | 25 years as bishop | Bishop Jacques Moïse Eugène Noyer |
| 2012.12.14 | 50 years as bishop | Bishop Remi Joseph De Roo |
| 2012.12.16 | 50 years as priest | Bishop Ireneo Ali Amantillo, C.SS.R. |
| 2012.12.16 | 50 years as priest | Bishop Paulino do Livramento Évora, C.S.Sp. |
| 2012.12.16 | 50 years as priest |  Bishop Claudio Silvero Acosta, S.C.I. |
| 2012.12.17 | 25 years as priest | Mr. Gabino Miranda Melgarejo |
| 2012.12.17 | 40 years as bishop | Cardinal Jean Honoré |
| 2012.12.17 | 40 years as bishop | Bishop Luís Gonzaga Ferreira da Silva, S.J. |
| 2012.12.19 | 50 years as priest | Archbishop Henry Joseph Mansell |
| 2012.12.19 | 25 years as priest |  Archbishop Edward Joseph Weisenburger |
| 2012.12.19 | 50 years as priest | Bishop Matthew Harvey Clark |
| 2012.12.19 | 70 years as priest | Bishop Odo Fusi Pecci |
| 2012.12.20 | 60 years as priest | Cardinal Alexandre do Nascimento |
| 2012.12.20 | 60 years as priest |  Archbishop Daniel Anthony Cronin |
| 2012.12.20 | 60 years as priest | Bishop Robert Joseph Banks |
| 2012.12.20 | 25 years as priest |  Bishop Jesús José Herrera Quiñónez |
| 2012.12.20 | 70 years as priest | Bishop Douglas Joseph Warren |
| 2012.12.20 | 25 years as bishop |  Archbishop Braulio Rodríguez Plaza |
| 2012.12.21 | 60 years as priest | Cardinal Emmanuel III Delly |
| 2012.12.21 | 50 years as priest |  Bishop Agnelo Rufino Gracias |
| 2012.12.21 | 50 years as priest | Bishop Joseph Kyeong Kap-ryong (경갑룡 요셉 / 景甲龍) |
| 2012.12.22 | 50 years as priest | Cardinal Joachim Meisner |
| 2012.12.22 | 50 years as priest | Archbishop Lawrence Patrick Henry |
| 2012.12.22 | 50 years as priest |  Bishop José Luis Amezcua Melgoza |
| 2012.12.22 | 50 years as priest |  Bishop Benedito Beni dos Santos |
| 2012.12.22 | 50 years as priest |  Bishop Januário Machaze Nhangumbe |
| 2012.12.22 | 50 years as priest | Bishop Joseph Sangval Surasarang |
| 2012.12.22 | 50 years as priest |  Bishop José Clemente Weber |
| 2012.12.23 | 50 years as priest |  Archbishop Paciano Basilio Aniceto |
| 2012.12.23 | 50 years as priest |  Bishop Josu Iriondo Zabaleta |
| 2012.12.25 | 60 years as priest | Bishop Manuel Revollo Crespo, C.M.F. |
| 2012.12.27 | 25 years as priest |  Bishop Paul Alappatt |
| 2012.12.27 | 25 years as bishop |  Cardinal Lluís Martínez Sistach |
| 2012.12.28 | 25 years as priest |  Bishop Joseph Pandarasseril |
| 2012.12.29 | 25 years as priest | Bishop Georges Fonghoro |
| 2012.12.30 | 50 years as priest |  Bishop Ibrahim Namo Ibrahim |