| Jurisdiction: | Diocese |
| Edmundston | |
| Coat: | File:Diocese_of_Edmundston.jpg |
| Coat Size: | 200px |
| Coat Caption: | Coat of Arms |
| Country: |  Canada |
| Catholics: | 49,400 |
| Catholics Percent: | 95.7 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 16 December 1944 |
| Cathedral: | Cathedral of the Immaculate Conception |
| Bishop: | Claude Champagne, O.M.I. (2009- present) |
| Map: | Bistum Edmundston.svg |
| Website: | diocese-edmundston.ca/en/welcome.html |
The Diocese of Edmundston, (Latin: Dioecesis Edmundstonensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in New Brunswick, Canada. The diocese was erected 16 December 1944. The Diocese of Edmundston is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Moncton.