Surname ดำรงพันธ์ (Damrongphan 
, Damrongpan , ดำรงพันธ์) , in the world, is a very rare last name. The cognomen ดำรงพันธ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ดำรงพันธ์ is the forename as well as the last name.