| Jurisdiction: | Diocese |
| Formosa | |
| Latin: | Dioecesis Formosae |
| Local: | Diócesis de Formosa |
| Country: |  Argentina |
| Metropolitan: | Resistencia |
| Province: | Resistencia |
| Area Km2: | 72,066 |
| Population: | 566,000 |
| Population As Of: | 2006 |
| Catholics: | 480,000 |
| Catholics Percent: | 84.8 |
| Parishes: | 27 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 11 February 1957 (years ago) |
| Cathedral: | Cathedral of Our Lady of Carmel in Formosa |
| Bishop: | José Vicente Conejero Gallego |
| Bishop Title: | Bishop |
| Metro Archbishop: | Fabriciano Sigampa |
The Roman Catholic Diocese of Formosa 'Dioecesis Formosae' (erected 11 February 1957) is in Argentina and is a suffragan of the Archdiocese of Resistencia.