Family name Ploysiri (Ploysiri 
) , in all the world, is a very rare last name. The cognomen Ploysiri is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, Ploysiri is the forename as well as the last name.
Moonkao, Kornpet, Wimanon, Songkaeo, Ploynumpol, Rangkadilok, Douville, Duangonnam, Chaoniruthisai, and Limprasert