Belleterre is a ville in western Quebec, Canada, in the MRC de Témiscamingue.

In 1930, prospector William Logan discovered gold near Mud Lake (now called Lake Guillet). This led to the establishment of the Belleterre Gold Mines Company in 1935, and the formation of the Belleterre community at nearby Sables Lake to house the miners and their families. In 1942, the place was incorporated as a town and at its peak had some 2000 residents. But by 1957, the mine was depleted and closed.

In the 2021 Census of Population conducted by Statistics Canada, Belleterre had a population of 285 living in 136 of its 181 total private dwellings, a change of -8.9% from its 2016 population of 313. With a land area of 544.49 km (210.23 sq mi), it had a population density of 0.5/km (1.4/sq mi) in 2021.

Historical census populations – Belleterre

Year Pop. ±% 1951 1,011 —     1956 889 −12.1% 1961 638 −28.2% 1966 825 +29.3% 1971 614 −25.6%	Year Pop. ±% 1976 535 −12.9% 1981 475 −11.2% 1986 446 −6.1% 1991 418 −6.3% 1996 395 −5.5%	Year Pop. ±% 2001 381 −3.5% 2006 350 −8.1% 2011 298 −14.9% 2016 313 +5.0% 2021 285 −8.9%
Source: Statistics Canada

Mother tongue (2021):

• English as first language: 7.0%
• French as first language: 89.5%
• English and French as first language: 1.8%
• Other as first language: 1.8%

• List of cities in Quebec

• Media related to Belleterre, Quebec at Wikimedia Commons
• Official website