Namsaknoi Yudthagarngamtorn (Thai: นำศักดิ์น้อย ยุทธการกำธร, born October 13, 1979) is a retired Muay Thai fighter from Thailand. He holds one of the highest winning percentages (95% wins in 300 fights), and one of the longest reigns as a Lumpinee Stadium Champion in history, remaining undefeated for the 135 lbs title between 2000–2006. He held wins over Muay Thai legends such as Saenchai, Samkor Kiatmontep, Kaolan Kaovichit, and Neungpichit Sityodtong. Namsaknoi was the camp senior of international Muay Thai superstar Buakaw when they both trained at Por Pramuk Camp. He spent 6 years in Singapore where he was an instructor to the Evolve Fight Team at Evolve Mixed Martial Arts, coaching world renowned MMA fighters such as Rafael Dos Anjos, Tarec Saffiedine, and Shinya Aoki.