Cognomen Poorinat (Poorinat 
) , across the world, is an extremely rare last name. Much more frequently, Poorinat is the forename as well as the last name.
Petrit, Deelin, Saikaew, Hamwihok, Klomchonlathan, Niyavemanont, Wiangjan, Sangarwut, Chaicomming, Plangklang, Pongthanyawiriya, and Chanrattanakul