| Jurisdiction: | Diocese |
| Crateús | |
| Latin: | Dioecesis Crateopolitana |
| Local: | Diocese de Crateús |
| Country: |  Brazil |
| Rite: | Latin Rite |
| Established: | 28 September 1963 (years ago) |
| Cathedral: | Cathedral of Our Lord of the Good End in Crateús |
| Area Km2: | 21,817 |
| Population: | 367,017 |
| Population As Of: | 2006 |
| Catholics: | 336,317 |
| Catholics Percent: | 91.6 |
| Metro Archbishop: | José Antônio Aparecido Tosi Marques |
| Website: | Website of the Diocese |
The Roman Catholic Diocese of Crateús (Latin: Dioecesis Crateopolitana) is a diocese located in the city of Crateús in the ecclesiastical province of Fortaleza in Brazil.