Surname ヒロヤス (Hiroyasu 
, ヒロヤス ) , across the world, is a common cognomen. The family name ヒロヤス is habitual in Japan, where it is quite a rare surname, Peru, where it is a rare surname, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Japan, China, and Peru. Much less frequently, ヒロヤス is the forename as well as the last name.