Last name เพ็ญพูน (Penpun 
, Penphun , เพ็ญพูน ) , around the globe, is a very rare family name. The family name เพ็ญพูน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more prevalently, เพ็ญพูน is the forename as well as the last name.