Surname ผ่องศิริ (Phongsiri 
, ผ่องศิริ) , globally, is a rare last name. The family name ผ่องศิริ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More prevalently, ผ่องศิริ is the forename as well as the last name.