| Jurisdiction: | Diocese |
| Chalatenango | |
| Latin: | Dioecesis Chalatenangensis |
| Country: | El Salvador |
| Metropolitan: | José Luis Escobar Alas |
| Province: | Province of San Salvador |
| Area Km2: | 2,600 |
| Population: | 271,000 |
| Population As Of: | 2006 |
| Catholics: | 244,000 |
| Catholics Percent: | 90 |
| Parishes: | 23 |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 30 December 1987 (years ago) |
| Bishop Title: | Bishop |
| Bishop: | Oswaldo Estéfano Escobar Aguilar, OCD (formerly, President of the Conference of Religious of El Salvador [CONFRES]) |
| Emeritus Bishops: | Luis Morao Andreazza, OFM |
| Map: | El Salvador - Diocesi di Chalatenango.jpg |
The Diocese of Chalatenango is a Latin Church ecclesiastical territory or diocese of the Catholic Church in El Salvador. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of San Salvador. The Diocese of Chalatenango was erected on 30 December 1987.