Foucault is a surname which is a variant of the French name Fouquereau, itself derived from Fouquier, a variant of Foucher. Notable people with the surname include:
Jean-Pierre Foucault (born 1947), French television host Jeffrey Foucault (born 1976), American songwriter Léon Foucault (1819–1868), French physicist Michel Foucault (1926–1984), French philosopher Steve Foucault (born 1949), former Major League Baseball pitcher David Foucault (born 1989), Canadian gridiron football player Marcel Foucault (born 1865), French philosopher and psychologist
See also Charles de Foucauld La Rochefoucauld (disambiguation)