Fecteau is a surname of French origin. Notable people with the surname include:
Clément Fecteau (1933–2017), Canadian Roman Catholic prelate Jean-Sébastien Fecteau (born 1975), Canadian pair skater Richard Fecteau (born 1927), American Central Intelligence Agency agent Ryan Fecteau (born 1992), American politician Simon Olivier Fecteau (born 1975), Canadian director, actor, producer and screenwriter Vincent Fecteau (born 1969), American sculptor
See also Air Fecteau, defunct Canadian airline