Leo Isaka is a Japanese professional wrestler currently signed to the Japanese promotion Marvelous That's Women Pro Wrestling. He is also known for his tenure with Pro Wrestling Zero1 where he is the current World Junior Heavyweight Champion and International Junior Heavyweight Champion in his first reign with both titles.

Marvelous That's Women Pro Wrestling often abbreviated simply as Marvelous is a Japanese joshi puroresu or women's professional wrestling promotion based in Chiba, Japan. It was founded by Chigusa Nagayo in 2014.