Last name พันธ์เศรษฐ์ (พันธ์เศรษฐ์ 
) , across the world, is a very rare surname. The surname พันธ์เศรษฐ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, พันธ์เศรษฐ์ is the forename as well as the last name.