Cognomen กมลศิริ (Kamonsiri 
, กมลศิริ , Kamasiri 
) , throughout the world, is a rare surname. The surname กมลศิริ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More prevalently, กมลศิริ is the forename as well as the last name.