Last name Pornsook (Pornsook 
) , in the world, is a very rare surname. The surname Pornsook is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Pornsook is the forename as well as the last name.
Koyama, Watanasiri, Damrongsiri, Tantrarungroj, Jitchanwichai, Kornkitichai, Suparanonrat, Chongprasith, Krailert, Jaikuea, Plumkid, Kimball, Kailert, Muanreed, Mongkol, Johnson, and Promwangkhwa