Suppachai Muensang known professionally as Superbon Singha Mawynn is a Thai professional Muay Thai fighter and kickboxer. He is signed to ONE Championship, where he is the current ONE Featherweight Kickboxing World Champion in his second reign after Chingiz Allazov was stripped of the title. He is also the 2016 Kunlun Fight World Max Tournament Champion and 2018 Enfusion Live 76 8-Man Tournament Champion. As of November 2024, Beyond Kickboxing ranks him as the #2 Lightweight and #2 pound-for pound kickboxer. He is also ranked #1 in the ONE Featherweight Muay Thai rankings. Notably he is one of only two fighters to have knocked out Giorgio Petrosyan one of the greatest kickboxers of all time, and one of only three to have beaten him. He also holds wins over fighters such as Sitthichai Sitsongpeenong, Marat Grigorianand Jomthong Chuwattana.