Cognomen Poonnawit (Poonnawit 
) , all over the world, is an extremely rare last name. Much more prevalently, Poonnawit is the forename as well as the last name.
Anaman, Khamchu, Phetsat, Lapatwutthikul, Tachati, Saengjan, Bartasook, Kongchum, Khamlert, Thanadolmethaphorn, Sukhowattanakit, Chokphiriyaphinyo, and Khongsuksawat