Cognomen คุ้มสิทธิ์ (Khumsit 
, Kumsit , คุ้มสิทธิ์) , all around the world, is a very rare family name. The surname คุ้มสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, คุ้มสิทธิ์ is the forename as well as the last name.