| Jurisdiction: | Diocese |
| Aguascalientes | |
| Latin: | Dioecesis de Aguas Calientes |
| Local: | Diócesis de Aguascalientes |
| Country: |  Mexico |
| Metropolitan: | Guadalajara |
| Province: | Province of Guadalajara |
| Area Sqmi: | 4,326 |
| Population: | 1,622,000 |
| Population As Of: | 2006 |
| Catholics: | 1,599,000 |
| Catholics Percent: | 98.6 |
| Parishes: | 99 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 27 August 1899 (years ago) |
| Cathedral: | Cathedral Basilica of Our Lady of the Assumption |
| Bishop: | Juan Espinoza Jiménez |
| Metro Archbishop: | Francisco Robles Ortega |
| Map: | Roman Catholic Diocese of Aguascalientes in Mexico.jpg |
| Website: | www.diocesisdeaguascalientes.org |
The Roman Catholic Diocese of Aguascalientes (Latin: Dioecesis de Aguas Calientes) (erected 27 August 1899) is a suffragan diocese of the Archdiocese of Guadalajara.