Cognomen Kornsasi (Kornsasi 
) , in the world, is an extremely rare family name. The family name Kornsasi is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Kornsasi is the forename as well as the last name.
Kemtis, Mahawarakorn, Wilawanwajee, Tuntrakul, Boonkhettanurak, Suwandenpong, Sangsrichan, Tritanaboon, Sirawong, Lertwongprasert, Sirawing, Noonsub, Jangjit, Kobwitthaya, Kamnerd, Chaidet, Supakit, Wechlusee, Piajumpa, Noonsup, and Sudprasertkij