Cognomen ดวงพันธ์ (ดวงพันธ์ 
, Duangpun 
, Duangpan ) , all around the world, is a rare last name. The family name ดวงพันธ์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, ดวงพันธ์ is the forename as well as the last name.