Family name เศรษฐรัตน์ (เศรษฐรัตน์ 
, Settharat ) , across the world, is a very rare cognomen. The surname เศรษฐรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, เศรษฐรัตน์ is the forename as well as the last name.