Lesage or LeSage may refer to:
- Maison Lesage (aka Lesage et Cie.), a couture embroidery atelier, headed firstly by Albert Lesage and secondly by his son, François Lesage.
- Merle LeSage (1936–2005), mayor of Geneseo, IL
- Jean Lesage (1912–1980), Canadian lawyer and politician
- Alain-René Lesage (1668–1747), French novelist and playwright
- Jean-Michel Lesage (born 1977), French soccer player
- Joe LeSage (born 1928), attorney in Shreveport, former Louisiana state senator, and 1948 Louisiana State University quarterback
- Patrick LeSage, former Chief Justice of the Supreme Court of Ontario
- Odile Lesage (born 1969), retired French heptathlete
- Lesage, soubriquet of Adam Cœuret or de Coueret, alias Dubuisson, a leading figure in the Affair of the Poisons
Places
- Jean-Lesage, provincial electoral district in Quebec, Canada
- Québec/Jean Lesage International Airport
- Lesage, West Virginia
Other
- Lesage, a Canadian piano maker
See also: Le Sage