| Jurisdiction: | Diocese |
| Concepción | |
| Latin: | Dioecesis Sanctissimae Concepionis in Argentina |
| Local: | Diócesis de Concepción |
| Metropolitan: | Tucumán |
| Country: |  Argentina |
| Province: | Tucumán |
| Area Km2: | 11,600 |
| Population: | 320,000 |
| Population As Of: | 2006 |
| Catholics: | 291,600 |
| Catholics Percent: | 91.1 |
| Parishes: | 19 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 12 August 1963 (years ago) |
| Cathedral: | Cathedral of the Immaculate Conception in Concepción, Tucumán |
| Patron: | Immaculate Conception St John the Baptist |
| Bishop: | José Antonio Díaz |
| Bishop Title: | Bishop |
| Metro Archbishop: | Carlos Alberto Sánchez |
| Emeritus Bishops: | Armando José María Rossi, O.P. |
The Roman Catholic Diocese of Concepción (la|Dioecesis Sanctissimae Concepionis in Argentina) is in Argentina and is a suffragan of the Archdiocese of Tucumán.
On 12 August 1963 Saint John XXIII founded the Diocese of Concepción from territory taken from the Archdiocese of Tucumán.[1] [2]