Family name เศรษฐสุทธิ์ (เศรษฐสุทธิ์ 
) , throughout the world, is an extremely rare last name. The family name เศรษฐสุทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, เศรษฐสุทธิ์ is the forename as well as the last name.