Cognomen เพ็ญโพธิ์ (Penpho 
, เพ็ญโพธิ์ ) , across the world, is a rare family name. The surname เพ็ญโพธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, เพ็ญโพธิ์ is the forename as well as the last name.