| Bishop (2022.10.07 – ...): |  Bishop Orazio Francesco Piazza (72) |
Cities (Lazio)  | Churches (131) |
| Acquapendente |  Santo Sepolcro (Co-Cathedral, Minor Basilica, Parish)  Co-Cathedral Basilica of the Holy Sepulchre |
| Acquapendente |  San Lorenzo Martire (Parish) Church of St. Lawrence the Martyr |
| Arlena di Castro | San Giovanni Battista (Parish) Church of St. John the Baptist |
| Bagnaia | Madonna del Rosario Church of Our Lady of the Rosary |
| Bagnaia | San Giovanni Battista (Parish) Church of St. John the Baptist |
| Bagnoregio |  San Nicola, San Donato e San Bonaventura (Co-Cathedral) Co-Cathedral of St. Nicholas, St. Donatus and St. Bonaventure |
| Bagnoregio | Annunziata Church of the Annunciation |
| Bagnoregio | San Bonaventura (Parish) Church of St. Bonaventure |
| Bagnoregio | San Francesco (Parish) Church of St. Francis |
| Bagnoregio | San Martinio Church of St. Martin |
| Barbarano Romano | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Blera |  Santa Maria Assunta e San Vivenzio (Former Cathedral, Parish) Church of St. Mary of the Assumption |
| Bomarzo | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| La Botte | Cristo Re (Parish) Church of Christ the King |
| Canepina | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Canino | Nostra Signora delle Neve e Sant’Antonio Abate (Parish) Church of Our Lady of the Snows and St. Anthony |
| Canino | San Francesco (Parish) Church of St. Francis |
| Canino | Santi Giovanni e Andrea Apostoli (Parish) Church of St. John and St. Andrew the Apostles |
| Capodimonte | Santa Maria Assunta in Cielo (Parish) Church of Our Lady of the Assumption |
| La Capraccia | Sant’Antonio (Parish) Church of St. Anthony |
| Castel Cellesi | San Girolamo (Parish) Church of St. Jerome |
| Castiglione in Teverina | Santi Filippo e Giacomo (Parish) Church of Sts. Philip and James |
| Celleno | San Donato (Parish) Church of St. Donatus |
| Cellere | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Centeno | San Giovanni Battista (Parish) Church of St. John the Baptist |
| Civita di Bagnoregio | San Donato (Former Cathedral, Parish) Former Cathedral of St. Donatus |
| Civitella Cesi | San Leonardo (Parish) Church of St. Leonard |
| Civitella d’Agliano | Santi Pietro e Callisto (Parish) Church of St. Peter and St. Callistus |
| Cura di Vetralla | Santa Maria del Soccorso (Parish) Church of Our Lady of Help |
| Le Farine | Santa Maria delle Farine (Parish) Church of St. Mary |
| Farnese | Santissimo Salvatore (Parish) Church of the Holy Saviour |
| Fastello | Santa Lucia Filippini (Parish) Church of St. Lucia Filippini |
| Gradoli | Santa Maria Maddalena (Parish) Church of St. Mary Magdalene |
| Graffignano | San Martino Vescovo (Parish) Church of St. Martin the Bishop |
| Grotte di Castro |  Santa Maria del Suffragio (Minor Basilica, Shrine) Basilica Shrine of Our Lady of Suffrage |
| Grotte di Castro | San Giovanni Evangelista Church of St. John the Evangelist |
| Grotte di Castro | Santa Maria delle Colonne (Parish) Church of St. Mary |
| Grotte di Castro | San Pietro Apostolo (Parish) Church of St. Peter the Apostle |
| Grotte Santo Stefano | Santo Stefano (Parish) Church of St. Stephen |
| Ischia di Castro | Sant’Ermete (Former Cathedral, Parish) Former Cathedral of St. Hermes |
| Ischia di Castro |  Crocifisso (Shrine) Shrine of the Crucifix |
| Latera | San Clemente I (Parish) Church of St. Clement I |
| Lubriano | San Giovanni Battista (Parish) Church of St. John the Baptist |
| Marta | Santi Marta e Biagio (Parish) Church of St. Martha and St. Blaise |
| Montecalvello | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Montefiascone | Santa Margherita d’Antiochia (Co-Cathedral, Minor Basilica, Parish) Co-Cathedral Basilica of St. Margaret of Antioch |
| Montefiascone | San Flaviano (Minor Basilica, Parish) Basilica of St. Flavian |
| Montefiascone | Corpus Domini (Parish) Church of the Body of the Lord |
| Montefiascone | San Giuseppe (Parish) Church of St. Joseph |
| Montefiascone | Santa Maria del Giglio (Parish) Church of Our Lady |
| Monterazzano | San Giuseppe Lavatore (Parish) Church of St. Joseph the Worker |
| Mugnano | Santi Vincenzo e Liberato (Parish) Church of St. Vincent and St. Liberatus |
| Onano | Sacra Croce (Parish) Church of the Holy Cross |
| Oriolo Romno | San Giorgio Martire (Parish) Church of St. George the Martyr |
| Pianano | San Sigismondo (Parish) Church of St. Sigismond |
| Piansano | Madonna del Suffragio Church of Our Lady of Suffrages |
| Piansano | San Bernardino da Siena (Parish) Church of St. Bernardine of Siena |
| Proceno | San Martino Church of St. Martin |
| Proceno | Sant’Agnese Church of St. Agnes |
| Proceno | Santissimo Salvatore (Parish) Church of the Holy Saviour |
| La Quercia | Santa Maria della Quercia (Minor Basilica, Shrine, Parish) Basilica of Our Lady of the Oak Tree |
| Roccalvecce | San Paolo Apostolo (Parish) Church of St. Paul the Apostle |
| Roggi | Immacolata Concezione (Parish) Church of the Immaculate Conception |
| San Lorenzo Nuovo | San Lorenzo Martire (Parish) Church of St. Lawrence the Martyr |
| San Lorenzo Nuovo | Santa Maria Assunta Church of St. Mary of the Assumption |
| San Martino al Cimino | San Martino al Monte Cimino (Former Cathedral, Abbatial Parish) Church of St. Martin |
| San Michele in Teverina | San Michele Arcangelo (Parish) Church of St. Michael the Archangel |
| Sant’Angelo in Roccalvecce | San Michele Arcangelo (Parish) Church of St. Michael the Archangel |
| Sermugnano | Madonna delle Grazie Church of Our Lady of Grace |
| Sermugnano | Natività di Maria Church of the Nativity of Mary |
| Sermugnano | San Silvestro Papa (Parish) Church of St. Sylvester |
| Sipicciano | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Tessennano | San Felice Martire (Parish) Church of St. Felix the Martyr |
| Tobia | Santa Maria del Rosario (Parish) Church of Our Lady of the Rosary |
| Torre Alfina | Santa Maria Assunta in Cielo (Parish) Church of Our Lady of the Assumption |
| Tre Croci | Sant’Antonio da Padova (Parish) Church of St. Anthony of Padua |
| Trevinano | Natività di Maria Santissima (Parish) Church of the Nativity of Mary |
| Tuscania | San Giacomo (Co-Cathedral, Parish) Basilica of St. James |
| Tuscania | San Pietro (Former Cathedral) Church of St. Peter |
| Tuscania | Nostra Signora di Lourdes (Parish) Church of Our Lady of Lourdes |
| Tuscania | Sacro Cuore di Gesù (Parish) Church of the Sacred Heart of Jesus |
| Tuscania |  Santa Croce Former Church of the Holy Cross |
| Tuscania | San Francesco Church of St. Francis |
| Tuscania | San Giuseppe Church of St. Joseph |
| Tuscania | San Govanni Decollato (Parish, Shrine) Santuario della Madonna Addolorata Church of the Beheading of St. John the Baptist Shrine of Our Lady of Sorrows |
| Tuscania | San Lorenzo (Parish) Parrocchia Santi Martiri Church of St. Lawrence |
| Tuscania | San Marco (Parish) Parrocchia Santi Marco e Silvestro Church of St. Mark |
| Tuscania | Santa Maria della Rosa Church of St. Mary |
| Tuscania | San Paolo Church of St. Paul |
| Tuscania | San Silvestro Church of St. Sylvester |
| Tuscania | Sant’Agostino Church of St. Augustine |
| Vaiano | Santissima Annunziata (Parish) Church of the Holy Annunciation |
| Valentano | San Giovanni Apostolo ed Evangelista (Parish) Church of St. John the Apostle and Evangelist |
| Valentano | Santa Maria della Salute (Parish, Shrine) Shrine of Our Lady of Health |
| Valentano | Sant’Agapito e Santissima Annunziata (Parish) Church of St. Agapitus and the Annunciation |
| Vallebona | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Vejano | Santa Maria Assunta (Parish) Church of St. Mary of the Assumption |
| Vetralla | Sant’Andrea e San Francesco (Parish) Church of St. Andrew and St. Francis |
| Vetralla | Sant’Antonio da Padova Church of St. Anthony of Padua |
| Vetralla | Santi Filippo e Giacomo (Parish) Church of Sts. Philip and James |
| Vetriolo | San Donato (Parish) Church of St. Donatus |
| Villa San Giovanni in Tuscia | San Giovanni Battista (Parish) Church of St. John the Baptist |
| Viterbo |  San Lorenzo Martire (Cathedral, Minor Basilica, Parish) Cathedral Basilica of St. Lawrence Martyr |
| Viterbo | San Francesco (Minor Basilica, Conventual-Parish) Basilica of St. Francis |
| Viterbo | Sacra Famiglia (Parish) Church of the Holy Family |
| Viterbo | Sacro Cuore (Parish) Church of the Sacred Heart |
| Viterbo | Santa Barbara Vergine e Martire (Parish) Church of St. Barbara |
| Viterbo | San Giovanni Battista Church of St. John the Baptist |
| Viterbo | San Giovanni Evangelista (Parish) Church of St. John the Evangelist |
| Viterbo | San Leonardo Murialdo (Parish) Church of St. Leonardo Murialdo |
| Viterbo | San Marco Evangelista (Parish) Church of St. Mark the Evangelist |
| Viterbo | Santa Maria del Paradiso (Parish) Church of Our Lady of the Paradise |
| Viterbo | Santa Maria dell’Edera (Parish) Church of St. Mary |
| Viterbo | Santa Maria della Salute Church of Our Lady of Health |
| Viterbo | Santa Maria delle Grotticella (Parish) Church of St. Mary |
| Viterbo | Santa Maria delle Verità (Parish) Church of Our Lady of Truth |
| Viterbo | Santa Maria Nuova (Parish) Church of St. Mary |
| Viterbo | Santa Rosa (Shrine) Shrine of St. Rose |
| Viterbo | San Silvestro Church of St. Sylvester |
| Viterbo | San Sisto (Parish) Church of St. Sixtus |
| Viterbo | Sant’Andrea Apostolo (Parish) Church of St. Andrew the Apostle |
| Viterbo | Sant’Angelo in Spatha (Parish) Church of the Holy Angel |
| Viterbo | Santi Valentino e Ilario (Parish) Church of St. Valentine and St. Hilarius |
| Viterbo | Santissima Trinità (Parish, Shrine) Santuario della Madonna Liberatrice Church of the Holy Trinity Shrine of Our Lady Liberatrix |
| Vitorchiano | Nostra Signora di San Giuseppe (Monastery) Monastery of Our Lady of St. Joseph |
| Vitorchiano | San Giovanni Battista Church of St. John the Baptist |
| Vitorchiano | Santa Maria Assunta in Cielo (Parish) Church of Our Lady of the Assumption |
| Vitorchiano | San Pietro Church of St. Peter |
| Vitorchiano | Sant’Antonio Church of St. Anthony |
| Vitorchiano | Sant’Antonio da Padova (Monastery) Convent of St. Anthony of Padua |
| Vitorchiano | Santissima Trinità Church of the Holy Trinity |
Last updated on 2026.01.21
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