Pelchat is a French surname. Notable people with the surname include:
Ann-Marie Pelchat (born 1974), Canadian freestyle skier Christiane Pelchat (born 1959), Canadian politician Juliette Pelchat (born 2004), Canadian snowboarder Marc Pelchat (born 1967), American speed skater Mario Pelchat (born 1964), Canadian Francophone singer from Quebec Zoé Pelchat, Canadian film and television director from Quebec