Filhol is a surname. Notable people with the surname include:
Alain Filhol (born 1951), French racing driver Antoine Michel Filhol (1759–1812), French engraver Édouard Filhol (1814–1883), French scientist Élisabeth Filhol (born 1965), French writer Henri Filhol (1843–1902), French medical doctor Jean-Gilles Filhol de Camas (1758–1805), French Navy officer
See also Jean-Baptiste Filhiol, a Frenchman, called Don Juan Filhiol by the Spanish