| Jurisdiction: | Diocese |
| Coatzacoalcos | |
| Latin: | Dioecesis Coatzacoalsensis |
| Local: | Diócesis de Coatzacoalcos |
| Country: |  Mexico |
| Metropolitan: | Coatzacoalcos |
| Province: | Province of Jalapa |
| Area Sqmi: | 4,055 |
| Population: | 988,553 |
| Population As Of: | 2006 |
| Catholics: | 795.419 |
| Catholics Percent: | 80.5 |
| Parishes: | 25 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 14 March 1984 (years ago) |
| Cathedral: | Cathedral of St. Joseph |
| Bishop: | Rutilo Muñoz Zamora |
| Metro Archbishop: | Vacant |
| Website: | www.diocesiscoatza.org |
The Roman Catholic Diocese of Coatzacoalcos (Latin: Dioecesis Coatzacoalsensis) (erected 14 March 1984) is a suffragan diocese of the Archdiocese of Jalapa.