| Jurisdiction: | Diocese |
| Osorno | |
| Latin: | Dioecesis Osornensis |
| Local: | Diócesis de Osorno |
| Province: | Puerto Montt |
| Metropolitan: | Puerto Montt |
| Rite: | Latin Rite |
| Established: | 15 November 1955 (years ago) |
| Area Km2: | 9,236 |
| Population: | 221,509 |
| Population As Of: | 2004 |
| Catholics: | 113,159 |
| Catholics Percent: | 51.1 |
| Patron: | St Matthew the Apostle |
| Metro Archbishop: | Fernando Ramos Arzobispo de Puerto Montt |
| Emeritus Bishops: | Juan Barros Madrid |
| Website: | iglesiadeosorno.cl |
The Roman Catholic Diocese of Osorno (in Latin: Dioecesis Osornensis ) is a suffragan diocese of the archdiocese of Puerto Montt, in Chile. The diocese was established on 15 November 1955 by Pope Pius XII by means of the papal bull Christianorum qui in Diocesibus.
The diocese, which comprises the entire province of Osorno in the Los Lagos region of Chile, covers a territory of 9,236 km² and has 22 parishes. According to the 2002 census by the Chilean Instituto Nacional de Estadística, 69.3% of the diocesan population of Osorno, ages 15 and over, considered themselves as Catholic. This figure represents about 154,000 Catholics out of a total population of 221,509 (2002).
The mother church of the diocese is the Cathedral of San Mateo in the city of Osorno.
City of Osorno and its surroundings:
Other localities: