Cognomen Chanpen (จันทร์เพ็ญ 
, Chanpen 
) , in all the world, is quite a common family name. The family name Chanpen is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. More frequently, Chanpen is the forename as well as the last name.
Husen, Phooakranun, Putthong, Tuankrua, Whanghirunkul, Mungsakorn, Mutthapong, Prommanee, Phetthong, Putthaisong, Puthipairoj, Thongplod, Osukhonthip, Wangnaikul, Sangsawang, Charapattanakul, Praserthsri, Phanthumat, Sathianruthai, Chunchankert, Wongcharoen, Rattanaphrom, Phooakaranun, Poochumni, Promchan, Panritdum, Saeeng, Anamvat, Kanram, Tharak, Noorak, Nuchit, Saerechusana, Sonprom, Srisang, Atapasu, Duangchanthong, Chompan, Krisrat, Pensupa, Pipopkul, Dararoek, Wankham, Wongwan, Sirikaew, Chaiwuth, Kasetsin, Koetsombat, Kidthook, and Rungcharoenchai