Family name กุลสมบัติ (กุลสมบัติ 
, Guldsombut, Kunsombat ) , across the world, is a rare cognomen. The family name กุลสมบัติ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, กุลสมบัติ is the forename as well as the last name.