Cognomen ปานหิรัญ (Panhiran 
, ปานหิรัญ , Panhirun ) , all over the world, is a rare surname. The last name ปานหิรัญ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ปานหิรัญ is the forename as well as the last name.