Groulx is a surname.

Persons Notable people with the surname include:

Benoit Groulx (Canadian football) (born 1985), Canadian football player Benoit Groulx (ice hockey) (born 1968), Canadian ice hockey player Benoit-Olivier Groulx (born 2000), French-born Canadian hockey player Danny Groulx (born 1981), Canadian hockey player Danny Groulx (Canadian football) (born 1990), Canadian football player Georges Groulx (1922–1997), Canadian actor Gilles Groulx (1931–1994), Canadian filmmaker Henri Groulx (1888–1952), Canadian pharmacist and politician Joseph Groulx (c. 1884–?), Franco-Ontarian storyteller Lionel Groulx (1878–1967), Canadian priest, historian and nationalist Collège Lionel-Groulx, a college Lionel-Groulx station, a station on the Montreal Metro Pierre Groulx (born 1975), Canadian hockey coach Sébastien Groulx (1974–2025), Canadian weightlifter Sylvie Groulx, Canadian filmmaker Teddy Groulx (1883–1936), Canadian hockey player Wayne Groulx (born 1965), Canadian-born Austrian hockey player Will Groulx (born 1974), American wheelchair rugby player

See also Monts Groulx, a range of hills Groulx, an electoral district