Chaigneau may refer to:
People Florent Chaigneau (born 1984), French professional footballer Jean-Baptiste Chaigneau (1769–1832), French soldier and adventurer Suzanne Chaigneau (1875–1946), French musician
Other Chaigneau (grape), French wine grape that is also known as Enfariné noir Chaigneau-Brasier, French car manufacturer Chaigneau Peak, Antarctic mountain