Cognomen กุศลศิลป์ (กุศลศิลป์ 
, Kusolsilp ) , across the world, is a rare last name. The cognomen กุศลศิลป์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, กุศลศิลป์ is the forename as well as the last name.