| Jurisdiction: | Diocese |
| Mont-Laurier | |
| Latin: | Dioecesis Montis Laurei |
| Coat: | File:Diocese_of_Mont-Laurier.jpg |
| Coat Size: | 200px |
| Coat Caption: | Logo of the Diocese |
| Country: |  Canada |
| Province: | Gatineau |
| Population: | 101,000 |
| Population As Of: | 2021 |
| Catholics: | 81,250 |
| Catholics Percent: | 80.4 |
| Parishes: | 16 |
| Denomination: | Catholic |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 1913 |
| Dissolved: | 2022 (united with Diocese of Saint-Jérôme) |
| Cathedral: | Cathédrale Notre-Dame-de-Fourvière |
| Bishop: | Raymond Poisson |
| Metro Archbishop: | Paul-André Durocher |
| Emeritus Bishops: | Paul Lortie Vital Massé |
| Map: | Bistum Mont-Laurier.svg |
The Diocese of Mont-Laurier (Latin: Dioecesis Montis Laurei) was a former Latin Church diocese that included part of the Province of Quebec. On 1 June 2022 the diocese was merged with the diocese of Saint-Jérôme, becoming the Diocese of Saint-Jérôme–Mont-Laurier.
As of 2021, the Diocese had 16 parishes, 22 active diocesan priests, 2 religious priests, and 81,250 Catholics. It also had 5 Women Religious, and 2 Religious Brothers. The Vatican's website, as of 2011, gives an area of 19,968 (units not given); a total population of 95,256; a Catholic population of 77,340; 35 priests; 1 permanent deacon; and 58 religious.
After Bishop Lortie's retirement, this diocese came under an Apostolic Administrator, Most Rev. Paul-André Durocher, Archbishop of Gatineau, the metropolitan of the ecclesiastical province which includes this diocese.
On June 1, 2020, Pope Francis appointed Raymond Poisson to serve as Bishop of Mont-Laurier, concurrently as Bishop of Saint-Jerome, in the form of in persona episcopi ("in the persons of the bishop").[1]
The following is a list of the bishops of Mont-Laurier, including auxiliary bishops, and their terms of service: