Descoteaux is a surname. Notable people with the surname include:
Bernard Descôteaux (born 1947), Canadian journalist
David Descôteaux, Canadian journalist
Joseph-Félix Descôteaux (1863–1931), Canadian politician
Matthieu Descoteaux (born 1977), Canadian ice hockey player
Norm Descoteaux (born 1948), Canadian ice hockey player
Pierre Descoteaux (born 1952), Canadian lawyer and politician