| Jurisdiction: | Diocese |
| San Bernardo | |
| Latin: | Dioecesis Sancti Bernardi |
| Local: | Diócesis de San Bernardo |
| Province: | Santiago de Chile |
| Metropolitan: | Santiago de Chile |
| Rite: | Latin Rite |
| Established: | 13 July 1987 (years ago) |
| Cathedral: | Cathedral of St Bernard in Santiago |
| Area Km2: | 1,145 |
| Population: | 842,000 |
| Population As Of: | 2010 |
| Catholics: | 613,000 |
| Catholics Percent: | 72.8 |
| Patron: | St Bernard of Clairvaux |
| Metro Archbishop: | Celestino Aós Braco, OFM Cap |
| Website: | www.obispadodesanbernardo.cl |
The Roman Catholic Diocese of San Bernardo (Latin: Sancti Bernardi) is a diocese located in the city of San Bernardo in the ecclesiastical province of Santiago de Chile in Chile.