| Jurisdiction: | Diocese |
| Picos | |
| Latin: | Dioecesis Picuensis |
| Rite: | Latin Rite |
| Established: | 28 October 1974 (years ago) |
| Cathedral: | Catedral Nossa Senhora dos Remédios |
| Area Km2: | 23,121 |
| Population: | 347,140 |
| Population As Of: | 2004 |
| Catholics: | 302,862 |
| Catholics Percent: | 87.2 |
| Metro Archbishop: | Jacinto Furtado de Brito Sobrinho |
| Website: | www.diocesedepicos.org.br |
The Roman Catholic Diocese of Picos (Latin: Dioecesis Picuensis) is a diocese located in the city of Picos in the ecclesiastical province of Teresina in Brazil.