| La Trinité-des-Monts | |
| Settlement Type: | Parish municipality |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Map Caption: | Location in eastern Quebec |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Bas-Saint-Laurent |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Rimouski-Neigette |
| Established Title1: | Constituted |
| Established Date1: | January 1, 1965 |
| Named For: | The Christian Trinity and the nearby mountains |
| Leader Title: | Mayor |
| Leader Name: | Chantal Gagnon |
| Leader Title1: | Federal riding |
| Leader Name1: | Rimouski-Neigette—Témiscouata—Les Basques |
| Leader Title2: | Prov. riding |
| Leader Name2: | Rimouski |
| Area Total Km2: | 239.20 |
| Area Land Km2: | 233.07 |
| Population Total: | 233 |
| Population As Of: | 2021 |
| Population Density Km2: | 1 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 4.5% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 167 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0K 1B0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
La Trinité-des-Monts is a parish municipality in the Canadian province of Quebec, located in the Rimouski-Neigette Regional County Municipality.
The municipality's religious name refers to the trinity in Christianity. The name was inspired by the Mission of the Holy Spirit, which gave rise to the parish of La Trinité-des-Monts and the neighbouring parish of Esprit-Saint. In fact, the post office where La Trinité-des-Monts was later organised took the name Esprit-Saint in 1938. The post office was renamed Cenellier in 1939, after a local river. It adopted its current name of La Trinité-des-Monts in 1943. These place names were chosen by the religious authorities of the Archdiocese of Rimouski. More specifically, it was Monsignor Charles-Eugène Parent, Bishop of Rimouski, who baptised the parish when he spotted the Notre Dame Mountains to the east while looking for a site to build the church of La Trinité-des-Monts.[1]
La Roche is a township established on May 5, 1882. It has an overall area of 20,235 hectares and is named for Troilus de Mesqouez.
In the 2021 Census of Population conducted by Statistics Canada, La Trinité-des-Monts had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 233.07km2, it had a population density of in 2021.[2]