Family name Khamwai (Khamwai 
) , throughout the world, is a very rare surname. The last name Khamwai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Very seldom, Khamwai is the forename as well as the last name.
Tha, Arnon, Phisit, Somboon, Komkrit, Khomkrit, Chirachaya, Kannaphat, Khanyawan, and Wiratchada