Cognomen ទេពកោសល្យ (ទេពកោសល្យ 
) , all over the world, is an extremely rare last name. The last name ទេពកោសល្យ is characteristic of South-eastern Asia, particularly Cambodia, where it is a very rare surname. More prevalently, ទេពកោសល្យ is the forename as well as the last name.