Cognomen ขจรทรัพย์ (ขจรทรัพย์ 
, Kajohnsap ) , throughout the world, is a rare family name. The surname ขจรทรัพย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ขจรทรัพย์ is the forename as well as the last name.