Cognomen เลิศศิลป์ (เลิศศิลป์ 
, Lertsin 
) , in the world, is a rare family name. The family name เลิศศิลป์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, เลิศศิลป์ is the forename as well as the last name.