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Globally, Thanachai (ธนชัย , Thanachai , ธนะชัย ) is quite a common primarily masculine, but very infrequently girly given name. The first name Thanachai is habitual in South-eastern Asia, particularly Thailand, where it is quite a common principally boy's, but very seldom female name. Very seldom, Thanachai is the last name as well as the forename.
Wang, Torrernkham, Nissayan, Nitisamosorn, Yotsuree, Sittichai, Suborrapan, Sriviroonchai, Chanchaya, Chompatana, Khajonjarukun, Lertwachirakul, Limpadapan, Jaroenmak, Tantrakul, Thapthong, Phetcharat, Wichaiwong, Sawangphakdee, Sukittiworakul, Thanachaiary, Thirawatthada, Thayaping, Taerattanachai, Limsuwan, Riewsakunchart, Panya, Jaisue, Wongsa, Saechin, Saejueng, Singhon, Srisong, Choonam, Naksawn, Euapiyachart, Sirithanachai, Onsongkrai, Meechoke, Muaddumad, Seeviroonchai, Adsavakulchai, Boonwang, Bunphendach, Kaewpatima, Kaeosalee, Khamphon, Prasatvit, Yonsiri, and Kittirattanayothin