Duguay is a surname. Notable people with the surname include:
Calixte Duguay, CM (born 1939), multi-disciplinarian Canadian Artist Christian Duguay (actor) (born 1970), American comic actor Christian Duguay (director) (born 1957), Canadian director Joseph Duguay (1816–1891), Quebec merchant and political figure Joseph Nestor Duguay (1846–1907), businessman and political figure in Quebec Joseph-Léonard Duguay (1900–1946), Member of the Canadian House of Commons and the Legislative Assembly of Quebec Léo Duguay (born 1944), Progressive Conservative party member of the Canadian House of Commons Shirley Duguay of Prince Edward Island, Canada went missing and was later found dead in a shallow grave Normand Duguay (born 1941), former Canadian politician in the National Assembly of Quebec Rachel Duguay (born 1975), American actress, voice actress, comedian, and television writer Raôul Duguay (born 1939), artist, poet, musician, and political activist in the Canadian province of Quebec Roger Duguay, former Canadian politician and Roman Catholic priest Ron Duguay (born 1957), retired Canadian professional ice hockey player and coach Yvette Duguay (1932–1986), American actress René Duguay-Trouin, (1673–1736), famous French corsair of Saint-Malo
See also French cruiser Duguay-Trouin (1923), the lead ship of a class of French light cruisers, launched in the early 1920s French frigate Duguay-Trouin (D 611), F67 type large high-sea frigates of the French Marine Nationale French ship Duguay-Trouin, a 74-gun ship of the line Duguay Trouin (1793–1794) French ship Duguay-Trouin (1800) or HMS Implacable (1805), 74-gun third-rate ship of the line of the Royal Navy Duguay-Trouin-class cruiser light cruisers were the first major French warships built after World War I