Gagnon is a surname of French Canadian origin. Notable people with the surname include:

• Aaron Gagnon (born 1986), Canadian ice hockey player
• Alain Gagnon (1938–2017), Canadian composer and educator
• Alphonse-Osias Gagnon (1860–1941), Canadian bishop
• André Gagnon (1942–2020), Canadian musician and composer
• André-Philippe Gagnon (born 1962), Canadian comedian and impressionist
• Aurore Gagnon (1909–1920), Canadian victim of child abuse

• Cécile Gagnon (born 1936), Canadian writer and illustrator
• Charles Gagnon (1934–2003), Canadian artist
• Charles-Antoine-Ernest Gagnon (1846–1901), Canadian notary and politician
• Chick Gagnon (1897–1970), American baseball player
• Christiane Gagnon (born 1948), Canadian politician
• Clarence Gagnon (1881–1942), Canadian painter
• Claude Gagnon (born 1949), Canadian filmmaker
• Clovis Gagnon (1926–2022), Canadian politician
• Craig A. Gagnon (born 1960), American politician

• Dave Gagnon (born 1967), Canadian ice hockey player
• Dave Gagnon (American football) (born 1951), American football player
• Drew Gagnon (born 1990), American baseball player

• Édouard Gagnon (1918–2007), Canadian Roman Catholic cardinal
• Eric Gagnon (born 1971), American musician
• Ernest Gagnon (1834–1915), Canadian folklorist, composer and organist

• Ferdinand Gagnon (1849–1886), Canadian-American journalist and publisher
• Francesca Gagnon (born 1957), Canadian singer and actress
• François Gagnon (1922–2017), Canadian politician
• François-Marc Gagnon (1935–2019), Canadian art historian and academic

• Gabriel-Yvan Gagnon (born 1951), Canadian politician
• Gérard Gagnon (fl. 1970s), Canadian priest
• Germain Gagnon (1942–2014), Canadian ice hockey player
• Gregory Gagnon (born c. 1972), American military general
• Gustave Gagnon (1842–1930), Canadian organist, composer and educator

• Henri Gagnon (1887–1961), Canadian composer, organist and educator
• Henri-Louis Gagnon (1881–1964), Canadian politician
• Hubert Gagnon (1947–2020), Canadian actor

• Jean Gagnon, multiple people
• Jean-Paul Gagnon, Australian philosopher and academic
• Jean-Louis Gagnon (1913–2004), Canadian journalist, writer and public servant
• Jérémy Gagnon-Laparé (born 1995), Canadian soccer player
• Joe Gagnon (1918–2001), Canadian boxer
• John Gagnon (1931–2016), American sociologist
• John B. Gagnon (1883–1939), American strongman performer
• Johnny Gagnon (1905–1984), Canadian ice hockey player
• Jonas Gagnon (1846–1915), American politician
• Joseph-William Gagnon (1879–1929), Canadian politician

• Keith Gagnon (born 1987), Canadian ice dancer
• Kenneth Gagnon, American politician

• Loïc Gagnon (born 1991), French footballer
• Louise Gagnon-Arguin (born 1941), Canadian archivist
• Lucien Gagnon (1793–1843), farmer and leader of the Lower Canada Rebellion
• Lysiane Gagnon (born 1941), Canadian journalist
• Luc Gagnon (born 2006), American political commentator

• Madeleine Gagnon (born 1938), Canadian educator, literary critic and writer
• Marc Gagnon (born 1975), Canadian short track speed skater
• Marc-Antoine Gagnon (born 1991), Canadian freestyle skier
• Marcel Gagnon (born 1936), Canadian politician
• Marcel Gagnon (musician) (born 1950), Canadian musician and substance abuse counsellor
• Mariano Gagnon (1929–2017), American Roman Catholic priest and missionary
• Marie-Claude Savard-Gagnon (born 1972), Canadian figure skater
• Marie-Michèle Gagnon (born 1989), Canadian alpine skier
• Marie-Pier Boudreau Gagnon (born 1983), Canadian synchronized swimmer
• Matthew Gagnon (born 1980), American political strategist and writer
• Maude Smith Gagnon (born 1980), Canadian poet
• Michel Kelly-Gagnon (born 1971), Canadian lawyer and businessperson
• Michelle Gagnon (born 1971), American crime novelist
• Mitch Gagnon (born 1984), Canadian mixed martial artist
• Monique Gagnon-Tremblay (born 1940), Canadian politician

• Narcisse A. Gagnon (1835–1903), Canadian politician
• Noam Gagnon (born 1963), Canadian dancer

• Onésime Gagnon (1888–1961), Canadian politician and lieutenant-governor of Québec

• Patrice Gagnon (born 1963), Canadian canoeist
• Patrick Gagnon (born 1962), Canadian politician
• Paul Gagnon, multiple people
• Paul-Edmond Gagnon (1909–1981), Canadian politician
• Philippe Gagnon (1909–2001), Canadian politician
• Philippe Gagnon (Canadian football) (born 1992), Canadian football player
• Philippe Gagnon (swimmer) (born 1980), Canadian Paralympic swimmer
• Pierce Gagnon (born 2005), American actor
• Pierre-Luc Gagnon (born 1980), Canadian skateboarder

• Réginald Charles Gagnon, known as Cayouche (born 1949), Canadian musician
• Rene Gagnon (1925–1979), American soldier associated with the photograph Raising the Flag on Iwo Jima
• René Gagnon (painter) (1928–2022), Canadian painter
• Richard Gagnon (born 1948), Canadian bishop
• Roy Gagnon (1913–2000), American football player
• Robert A. J. Gagnon (born 1958), American theological scholar and author

• Sean Gagnon (born 1973), Canadian ice hockey player
• Sébastien Gagnon (born 1973), Canadian politician
• Simon Gingras-Gagnon (born 1994), Canadian football player
• Sofiane Gagnon (born 1999), Canadian freestyle skier
• Sylvain Gagnon (born 1970), Canadian speed skater

• Terry Gagnon (born 1962), Canadian volleyball player

• Vincent Gagnon (born 1981), Canadian racquetball player

• Yannick Gagnon, Canadian politician
• Yechel Gagnon (born 1973), Canadian artist
• Yolande Gagnon, Canadian politician

• Gagné (surname)

Surname list

This page lists people with the surname Gagnon.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.