Guilbaud is a French surname. Notable people with the surname include:
Maëlle Guilbaud (born 1996), French windsurfer Marie-Pierre Guilbaud (born 1963), French cross country skier Patrick Guilbaud, French chef René Guilbaud (1890–1928), French military aviator Tertullien Guilbaud (1856-1937), Haitian lawyer, diplomat and poet