Tenshin Nasukawa (Japanese: 那須川 天心, Nasukawa Tenshin, born August 18, 1998) is a Japanese professional kickboxer, boxer and mixed martial artist. A generational talent, Nasukawa was regarded as a pound for pound talent throughout most of his ten-year career as a professional and is regarded as the greatest kickboxer in the modern history of the sport. Nasukawa became famous after his knockout victories over former IBF boxing world champion Amnat Ruenroeng in 2017 and Lumpinee Stadium Muay Thai champion Wanchalong PK Saenchaigym in 2016.