Surname Dumrongsak (Dumrongsak 
, ดำรงศักดิ์) , across the world, is a rare last name. The family name Dumrongsak is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. More prevalently, Dumrongsak is the forename as well as the last name.
Inta, Prammanee, Rongkakanok, Deowanish, Jaibunjong, Tummakorn, Nuanmusik, Sansernsook, Sundaranu, Sukjaroen, Chaiyatom, Chommontha, Kotchasit, Thongchai, Thummaporn, Ngoensatcha, Srisurindar, Chalerychon, Pleumjittikul, Changphetpol, Chaichatchaval, Kittiprapas, Boonying, Chaisarn, Singsana, Saengrit, Kumma, Meewan, Buapan, Buopan, Praewa, Jaiyai, Nuaklong, Ngorpradit, Sornjaeng, Soparat, Phonprasoeot, Chantha, Kawsomnuk, Padthaisong, Pekthong, Phurapee, Reonchaidee, Ritngam, Dookaew, Unggool, Maneerat, Meengarn, Kawsonnuk, and Rojanavongse