Colombier (French pronunciation: [kɔlɔ̃bje] ) is a municipality in the Canadian province of Quebec, located in the Côte-Nord region and the regional county municipality of La Haute-Côte-Nord. It is located along Route 138, about 60 kilometres (37 mi) south-west of Baie-Comeau.

It includes the population centres of (Sainte-Thérèse-de-) Colombier, Les Îlets-Jérémie, and Saint-Marc-de-Latour.

While some logging took place in the middle of the 19th century, real impetus to its development was due to the economic crisis of the 1930s, when government authorities encouraged resettlement of the unemployed by opening the area for agriculture. In 1932, Saint-Marc-de-Latour was formed with the construction of a sawmill. In 1935, the Parish of Sainte-Thérèse-des-Colombiers was formed. Also that year, pioneers set up 20 camps and built the road along the Saint Lawrence River. In 1937, the post office opened, then designated as Rivière-Colombier, named after the Colombier River, a tributary of the St. Lawrence that flows through the municipality.

In 1946, the Municipality of Colombier was formed, named after the river, which in turn was named after Charles-Roger des Colombiers (1628-1687), fur trader, citizen and alderman of Quebec, who had been granted a fief in that territory in 1677.

Historical census populations – Colombier, Quebec

Year Pop. ±% 1951 1,374 —     1956 1,495 +8.8% 1961 1,619 +8.3% 1966 1,555 −4.0% 1971 1,337 −14.0%	Year Pop. ±% 1976 1,232 −7.9% 1981 1,213 −1.5% 1986 1,113 −8.2% 1991 973 −12.6% 1996 947 −2.7%	Year Pop. ±% 2001 890 −6.0% 2006 817 −8.2% 2011 747 −8.6% 2016 685 −8.3% 2021 635 −7.3%
Source: Statistics Canada

Private dwellings occupied by usual residents (2021): 324 (total dwellings: 363)

Mother tongue (2021):

• English as first language: 0%
• French as first language: 98.4%
• English and French as first language: 0%
• Other as first language: 1.6%

• List of municipalities in Quebec

• Official website
• (in French) Municipalité de Colombier Archived 2011-07-06 at the Wayback Machine