All over the world, พุฒชัย (พุฒชัย 
) is a very rare unisex first name. The first name พุฒชัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare gender-neutral name. Much less frequently, พุฒชัย is the last name as well as the forename.
ยะยอง, and วุฒินันท์ชัย