| Jurisdiction: | Diocese |
| Registro | |
| Latin: | Dioecesis Registrensis |
| Province: | Sorocaba |
| Rite: | Latin Rite |
| Established: | 19 January 1974 (years ago) |
| Cathedral: | Catedral São Francisco Xavier |
| Area Km2: | 13,400 |
| Population: | 290,000 |
| Population As Of: | 2004 |
| Catholics: | 137,091 |
| Catholics Percent: | 47.3 |
| Metro Archbishop: | Júlio Endi Akamine, S.A.C. |
| Bishop: | Manoel Ferreira dos Santos, Júnior, M.S.C. |
| Emeritus Bishops: | José Luíz Bertanha, S.V.D. |
| Website: | www.diocesederegistro.com.br |
The Roman Catholic Diocese of Registro (Latin: Dioecesis Registrensis) is a diocese located in the city of Registro in the ecclesiastical province of Sorocaba in Brazil.