Shuichiro Katsumura
- Born
- 17 June 1976 (50 years)
- Place of birth
- Yokohama, Kanagawa, Japan
- Gender
- Male
Shuichiro Katsumura is a Japanese former mixed martial artist and professional wrestler who currently competes for DDT Pro-Wrestling, where he was an Independent World Junior Heavyweight champion. He competed in the Flyweight, Bantamweight and Featherweight divisions. Katsumura is credited in popularizing the "Ninja Choke" submission and is the current owner of ZST.