Family name Chujan (Чуян 
, Chujan 
) , across the world, is quite a rare cognomen. The last name Chujan is habitual in Ukraine, where it is a rare surname, Georgia, and Thailand. Measured by absolute frequency, this name is the most popular in Russia, Ukraine, and Thailand.
Yurn, Saowapha, Supattra, Soontree, Chanthra, Putsadee, Rapiphon, Jarassri, Jakapong, Jeerawut, Juntrapa, Jinnapat, Nattapon, Nattakan, Natkamon, Nonthiya, Nongkran, Nuannart, Waraporn, Soontreee, Pannaporn, Pawitchaya, Yuttana, Wisuwat, Onanong, Vilawan, Sutin, Aurai, Janya, Samran, Suriya, Prasit, Pradit, Jirunya, Yanisa, Sakarin, Phatthiya, Sirinad, Charoen, Pangbun, Pannapa, Pongpan, Piathip, Piyawan, Jakarin, Jongjit, Narupon, Niknipa, Anchisa, and Jinnaphat