All around the world, พันธ์สิน (พันธ์สิน 
) is a very rare mostly boy's, but infrequently feminine given name. The first name พันธ์สิน is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare dominantly boy's, but seldom girly name. More frequently, พันธ์สิน is the last name as well as the forename.