François Létourneau (born March 30, 1974 in Sainte-Foy, Quebec) is a Canadian actor and writer, best known as co-creator and star of the television series Les Invincibles, Série noire and Happily Married (C'est comme ça que je t'aime).

He studied political science at Université Laval in the 1990s, while pursuing acting work in theatre as an extracurricular hobby, and then studied theatre at the Conservatoire d'art dramatique de Montréal, where he graduated in 1999.