Cognomen กิจไพศาล (กิจไพศาล 
, Kijpaisal , Kitpaisarn ) , in the entire world, is a rare last name. The last name กิจไพศาล is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, กิจไพศาล is the forename as well as the last name.