| Jurisdiction: | Diocese |
| Tampico | |
| Latin: | Dioecesis Tampicensis |
| Local: | Diócesis de Tampico |
| Country: | Mexico |
| Province: | Monterrey |
| Area Sqmi: | 8,756 |
| Population: | 1,234,000 |
| Population As Of: | 2010 |
| Catholics: | 1,150,000 |
| Catholics Percent: | 93.2 |
| Parishes: | 64 |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 13 August 1861 (years ago) |
| Cathedral: | Cathedral of the Immaculate Conception |
| Bishop: | José Armando Álvarez Cano |
| Metro Archbishop: | Rogelio Cabrera López |
| Map: | Roman Catholic Diocese of Tampico in Mexico.jpg |
The Diocese of Tampico (Latin: Dioecesis Tampicensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Mexico It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Monterrey. It was erected 12 March 1870 as the Diocese of Ciudad Victoria-Tamaulipas and renamed 25 February 1958.
| Year | Along with | To form | |
|---|---|---|---|
| 1922 | Diocese of Papantla | ||
| 1958 | – | Diocese of Matamoros | |
| 1962 | Diocese of Tuxpan | ||
| 1964 | Diocese of Ciudad Victoria |