| Jurisdiction: | Diocese |
| Ocaña | |
| Latin: | Dioecesis Ocaniensis |
| Rite: | Roman Rite |
| Established: | 26 October 1962 (years ago) |
| Area Km2: | 18,000 |
| Population: | 417,514 |
| Population As Of: | 2004 |
| Catholics: | 352,137 |
| Catholics Percent: | 84.3 |
| Bishop: | Orlando Olave Villanoba |
| Map: | Mapa Diocesis de Ocaña.svg |
The Roman Catholic Diocese of Ocaña (Latin: Ocaniensis) is a diocese located in the city of Ocaña in the ecclesiastical province of Nueva Pamplona in Colombia.
The diocese was created on 26 October 1962 by Pope John XXIII, covering the departments of Norte de Santander and Cesar. It covers 18,000 km², and includes 18 towns and two townships in the municipality of La Esperanza (whose head belongs to the Nueva Pamplona).