Cognomen Yadfon (Yadfon 
) , all over the world, is an extremely rare last name. The surname Yadfon is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Yadfon is the forename as well as the last name.
Jairuk, Muangma, Suwanno, Sermthong, Ardwichai, Pinkeaw, Phonsri, Wankayo, Thongket, Kaewkomoot, Thurapang, Thuraphaeng, Rattanakun, Ritthiruang, and Phonthongchaisawat