Last name เศรษฐกาญจน์ (Sethakarn 
, เศรษฐกาญจน์ ) , worldwide, is a very rare family name. The last name เศรษฐกาญจน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, เศรษฐกาญจน์ is the forename as well as the last name.