Family name บุญทรัพย์ (บุญทรัพย์ 
, Boonsap , Boonsup ) , all over the world, is quite a rare last name. The surname บุญทรัพย์ is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname. Also, บุญทรัพย์ is the forename as well as the last name.