Satoko Shinashi (しなし さとこ, Shinashi Satoko, legal name 尻無 智子, born January 29, 1977) is a female Japanese mixed martial arts fighter. She specializes in judo, sambo and Brazilian Jiu-Jitsu and is known for using a variety of armbars to submit her opponents. Shinashi's record in MMA is 38-4-2, with her losses coming via knockout against Hisae Watanabe in a DEEP Women's Lightweight Championship bout and against Mai Ichii via Majority Decision. She captured the DEEP Women's Flyweight (99 lbs) Championship by winning a one-night tournament at DEEP: 34 Impact on February 22, 2008.