Preissac (French pronunciation: [pʁɛsak]) is a municipality in the Canadian province of Quebec, located in the Abitibi Regional County Municipality. The village of Preissac itself is located at the north end of Lake Preissac.

It is named after Lambert Preissac de Cadeihan, a lieutenant in the Régiment de Berry that was part of General Montcalm's army.

• 1906 : Opening of the first molybdenite mine
• 1916 : Establishment of the geographic township (canton) of Preissac.
• 1934 : Arrival of the first settlers under the Vautrin Plan
• 1936: Start of construction of the St-Raphael de Preissac church.
• January 1, 1979 : The Municipality of Preissac is established from previously unincorporated territory.
• 1979 : Opening of the Bousquet mine
• 1980 : Opening of the Doyon mine
• 1988 : Opening of Dumagami mine (later renamed La Ronde) operated by Agnico-Eagle which was the source in the 1990s of more than half of Quebec's gold production

Historical census populations – Preissac

Year Pop. ±% 1981 453 —     1986 455 +0.4% 1991 529 +16.3% 1996 619 +17.0% 2001 684 +10.5%	Year Pop. ±% 2006 726 +6.1% 2011 786 +8.3% 2016 835 +6.2% 2021 914 +9.5%
Source: Statistics Canada

Private dwellings occupied by usual residents (2021): 430 (total dwellings: 527)

Mother tongue (2021):

• English as first language: 1.6%
• French as first language: 97.8%
• English and French as first language: 0.5%
• Other as first language: 0%

Municipal council (as of 2023):

• Mayor: Donald Rheault
• Councillors: Casandra Couture, Jean-Paul Gosselin, David Gervais, Amélie Massé, Isabelle Beaulieu, Sébastien Petitclerc

List of former mayors:

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

• Jean-Yves Gingras (...–2009)
• Huguette Saucier (2009–2013)
• Stephan Lavoie (2013–2020)
• Nicole Poulin (2020)
• Donald Rheault (2020–present)

• Municipalité de Preissac
• Domaine Preissac (pourvoirie de la municipalité)