Surname เลิศฤทัย (เลิศฤทัย 
, Learkrit, Lertrid) , throughout the world, is an extremely rare last name. The cognomen เลิศฤทัย is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, เลิศฤทัย is the forename as well as the last name.