| Jurisdiction: | Diocese |
| Catanduva | |
| Latin: | Dioecesis Catanduvensis |
| Country: | Brazil |
| Rite: | Latin Rite |
| Established: | 9 February 2000 (years ago) |
| Cathedral: | Catedral Santuário Nossa Senhora Aparecida |
| Area Km2: | 4,601 |
| Population: | 266,455 |
| Population As Of: | 2004 |
| Catholics: | 206,089 |
| Catholics Percent: | 77.3 |
| Metro Archbishop: | Moacir Silva |
| Bishop: | Valdir Mamede |
| Map: | Diocesi di Catanduva (San Paolo, Brasile).jpg |
| Website: | www.diocesedecatanduva.org.br |
The Roman Catholic Diocese of Catanduva (Latin: Dioecesis Catanduvensis) is a diocese located in the city of Catanduva in the ecclesiastical province of Ribeirão Preto in Brazil.