Villamil is a surname. Notable people with the surname include:
Federico Cantero Villamil (1874–1946), Spanish civil engineer Jorge Villamil Cordovez (1929–2010), Colombian composer and songwriter José de Villamil (1789–1866), leader of Ecuador and first governor of the Galápagos Islands Martin de Villamil (1783–1843), Ecuadorian trader, brother of José Richard de Villamil (1850–1936), British scientist, grandson of Martin Silvia Rodríguez Villamil (1939–2003), Uruguayan historian, feminist, writer, and activist Soledad Villamil, Argentine actress
Villaamil Fernando Villaamil (1845–1898), Spanish naval officer Jenaro Pérez Villaamil (1807–1854), Spanish painter Polo Villaamil (born 1979), Spanish racing driver