Trécesson (French pronunciation: [tʁesɛsɔ̃]) is a township municipality in the Canadian province of Quebec, located in the Abitibi Regional County Municipality.

The municipality is part of the census agglomeration of Amos. It includes the communities of Clercs-Saint-Viateur, La Ferme, Lac-Davy, Trécesson, and Villemontel.

In the 2021 Census of Population conducted by Statistics Canada, Trécesson had a population of 1,232 living in 519 of its 584 total private dwellings, a change of 0.7% from its 2016 population of 1,223. With a land area of 196.89 km (76.02 sq mi), it had a population density of 6.3/km (16.2/sq mi) in 2021.

Historical census populations – Trécesson

Year Pop. ±% 1921 451 —     1931 797 +76.7% 1941 1,336 +67.6% 1951 1,200 −10.2% 1956 1,143 −4.7% 1961 1,131 −1.0%	Year Pop. ±% 1966 935 −17.3% 1971 847 −9.4% 1976 809 −4.5% 1981 1,059 +30.9% 1986 983 −7.2% 1991 1,061 +7.9%	Year Pop. ±% 1996 1,145 +7.9% 2001 1,177 +2.8% 2006 1,195 +1.5% 2011 1,138 −4.8% 2016 1,223 +7.5% 2021 1,232 +0.7%
Source: Statistics Canada

Mother tongue (2021):

• English as first language: 0%
• French as first language: 98.8%
• English and French as first language: 0.4%
• Other as first language: 0.4%

Municipal council (as of 2023):

• Mayor: Ghislain Nadeau
• Councillors: André Masson, Nadia Caron, Nathalie Dion, Martin Veilleux, Rémi Roy, Stephan Roy

List of former mayors:

This list is incomplete; you can help by adding missing items. (July 2023)

• Anita Bédard-Larochelle (...–2005, 2013–2017)
• Jacques Trudel (2005–2009)
• Ghislain Nadeau (2009–2013, 2021–present)
• Chantal Poliquin (2017–2018)
• Jacques Grenier (2019–2021)

• Media related to Trécesson at Wikimedia Commons
• Official website