Surname เพ็ญพนัส (เพ็ญพนัส 
, Chenphanat ) , in all the world, is a very rare last name. The cognomen เพ็ญพนัส is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, เพ็ญพนัส is the forename as well as the last name.