Cognomen Paphai (Paphai 
) , all over the world, is an extremely rare last name. The cognomen Paphai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Paphai is the forename as well as the last name.
Sabut, Pluckjai, Leaklaem, Chaiyakam, Sincharoonsak, Sitthitham, and Chomphuwiset