Sor Vorapin (Thai: ส.วรพิน; stylized as S.Vorapin or S.Warrapin) is a Muaythai and professional boxing gym based in Bangkok, Thailand.
This gym was established in 1979 by the couple Surapon and Vorapin Rungsikulpipat (สุรพล และ วรพิน รังษีกุลพิพัฒน์) to promote Muaythai.
Later, Ratanapol's younger brother, Ratanachai Sor Vorapin (รัตนชัย ส.วรพิน) won the WBO Bantamweight (118 lbs) world title on May 7, 2004 with a unanimous decision win over a Mexican boxer, Cruz Carbajal in Nakhon Ratchasima province.
[1] It originally had two branches were Bang Lamphu near Khao San Road and Wat Chana Songkhram, Phra Nakhon side[2] and Soi Suan Phak 1, Taling Chan District, Thonburi side.
The gym is reduced to only a sporting club that trains Muaythai to those who are interested only.