Marchal is a French surname. Notable people with the surname include:
André Marchal (1894–1980), French organist and teacherArlette Marchal (1902–1984), French film actressÉlie Marchal (1839–1923), Belgian botanist and mycologistHenri Marchal (1876–1970), French archaeologistGeorges Marchal (1920–1997), French actorGilles Marchal (1944–2013), French songwriter and singerJules Marchal (1924–2003), Belgian diplomat and historianMaurice Marchal (another name for Morvan Marchal, below)Morvan Marchal (1900–1963), Breton-French architect and nationalistOlivier Marchal (born 1958), French film directorSylvain Marchal (born 1980), French footballerThibault Marchal (born 1986), French footballer