Cognomen โพธิ์อรุณ (โพธิ์อรุณ 
, Phoarun ) , throughout the world, is a rare surname. The surname โพธิ์อรุณ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, โพธิ์อรุณ is the forename as well as the last name.