Around the world, Supachai (ศุภชัย 
, Supachai 
, สุภชัย ) is a common primarily male, but very seldom girly given name. The first name Supachai is characteristic of Thailand, where it is quite a common primarily male, but scarcely feminine name, and the United States, where it is an extremely rare male name.
| VARIANT | COUNTRY |
|---|---|
| ศุภชัย, สุภชัย | Thailand |
| Supachai | China, Thailand, Japan, United States, Myanmar |
ศุภมโนธรรม, สรรพชัย, and สุภาชัย
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supachai tangwongsan Thai computer scientist (b. 1947) |
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| supachai koysub Thai paralympic athlete, TH (b. 1901) |
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| supachai pintuwat badminton player, TH (b. 1979) |
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| supachai vuttipongchaikij researcher |
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| supachai rerks-ngarm HIV/AIDS researcher |
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| supachai topanurak researcher |
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| supachai yodkeeree researcher |
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| supachai komsilp Thai footballer, TH (b. 1980) |
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| supachai tanomsup researcher |
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| supachai sutimuntanakul researcher (ORCID 0000-0002-5098-519X) |
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| supachai chuenjitwongsa researcher |
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| supachai sakkhachornphop researcher |
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| supachai kamsab Thai footballer, TH (b. 1984) |
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| supachai phupa Thai footballer, TH (b. 1987) |
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| supachai koonterm |
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Wei, Sirimanoon, Sribuaban, Kueankaew, Rittisaman, Jirasangiamkul, Jitprasert, Nganroongruang, Pongvichaicharoen, Denkiriyadeelerd, Duangsaphol, Thaisawadi, Nuchitprasittichai, Sirichokwaree, Sutthiphitak, Chanbanchob, Chompoopuen, Pongsiriwan, Thawonrungkit, Suwanpatanachai, Jungjaroensuk, Ngamprasertwong, Yanarueng, Ovararint, Ninwisuth, Pinijchuea, Ardin, Dawan, Kumdee, Panlar, Pakdee, Taowan, Tipsit, Oonsup, Saeaiao, Sooksai, Hiranwattanasin, Srituan, Kijanda, Klaewtanong, Pakerak, Vongvekin, Sangchat, Supametee, Songsang, Chookerd, Kasamjantararote, Khumkaew, Kunjunta, and Anuttarakulvanit