The Province of Viterbo (Italian : Provincia di Viterbo), located in the Lazio region of central Italy, is subdivided into 60 municipalities (comuni). According to the Italian National Institute of Statistics (ISTAT) and the official provincial website, the municipalities are the following (alphabetical order):
- Acquapendente
- Arlena di Castelfranco
- Bagnoregio
- Barbarano Romano
- Bassano in Teverina
- Blera
- Bolsena
- Bomarzo
- Canepina
- Canino
- Capranica
- Caprarola
- Castel Sant’Elia
- Cellere
- Celleno
- Civita Castellana
- Civitella d’Agliano
- Corchiano
- Farnese
- Gallese
- Grotte di Castro
- Graffignano
- Lugnano in Teverina
- Montalto di Castro
- Monte Romano
- Montefiascone
- Monte Santa Maria Tiberina
- Monterosi
- Nepi
- Onano
- Oriolo Romano
- Piansano
- Porano
- San Lorenzo Nuovo
- Soriano nel Cimino
- Sutri
- Tarquinia
- Tuscania
- Valentano
- Vallerano
- Vasanello
- Vejano
- Vetralla
- Vignanello
- Viterbo (provincial capital)
- Vitorchiano
Note: This list reflects the municipalities officially recognized within the Province of Viterbo as of the latest available administrative data (2023). Administrative adjustments (such as mergers or name changes) that may have occurred after that date are not reflected here. For the most current information, consult the Province of Viterbo’s official website or ISTAT publications.
