| Jurisdiction: | Diocese |
| Benjamín Aceval | |
| Latin: | Dioecesis Beniaminacevalensis |
| Country: |  Paraguay |
| Rite: | Latin Rite |
| Area Km2: | 44,000 |
| Population: | 83,100 |
| Population As Of: | 2004 |
| Catholics: | 77,950 |
| Catholics Percent: | 93.8 |
| Bishop: | Amancio Francisco Benítez Candia |
| Emeritus Bishops: | Cándido Cárdenas Villalba |
| Map: | Diócesis de Benjamín Aceval.svg |
The Roman Catholic Diocese of Benjamín Aceval (Latin: Dioecesis Beniaminacevalensis) is a diocese located in the city of Benjamín Aceval in the ecclesiastical province of Asunción in Paraguay.