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Family name Supphasak (ศุภศักดิ์ , Supphasak
) , worldwide, is a very rare last name. The surname Supphasak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, Supphasak is the forename as well as the last name.
Apinyan, Nunsang, Thipvoragol, Benchawutthinan, Phonganant, and Watcharanuwit