Pinault () is a surname. Notable people with the surname include:
Clément Pinault (1985–2009), French football defender François Pinault (born 1936), French businessman François-Henri Pinault (born 1962), French businessman, son of François Pinault and husband of actress Salma Hayek Georges-Jean Pinault (born 1955), French linguist Henri Pinault (1904–1987), Bishop of Chengdu Thomas Pinault (born 1981), French professional footballer
See also Pinault's law in linguistics Pineau, a French aperitif Pineault