Japan
This page brings together champions and ranked contenders from Japan across the WBA, WBC, IBF and WBO. Use it as a snapshot of how fighters from this nation appear in the latest official world rankings.
Last Updated: December 2025
Champions
World champions representing Japan
Seiya Tsutsumi
World Champion
Ryusei Matsumoto
World Champion
Top 10 Contenders
Top 10 ranked boxers from Japan
Total Ranked
80 boxers from Japan are currently ranked as champions or contenders in the latest WBA, WBC, IBF and WBO world rankings. This list shows 33 additional fighters beyond the champions and Top 10 contenders highlighted above.
- Riku Kunimoto – Middleweight
- Kenta Nakagawa – Super Flyweight
- Suzumi Takayama – Super Flyweight
- Toshiki Kawamitsu – Light Flyweight
- Issa Sakata – Minimumweight
- Tatsuro Nakashima – Minimumweight
- Kyonosuke Kameda – Featherweight
- Satoshi Shimizu – Featherweight
- Nath Mwachuku – Super Welterweight
- Sora Tanaka – Welterweight
- Kuntae Lee – Super Lightweight
- Taiga Imanaga – Lightweight
- Hironori Mishiro – Lightweight
- Reito Takahashi – Lightweight
- Tsubasa Narai – Super Featherweight
- Rentaro Kimura – Super Featherweight
- Kyosuke Okamoto – Featherweight
- Toshiya Ishii – Super Bantamweight
- Kaito Yamasaki – Super Bantamweight
- Keita Kurihara – Bantamweight
- Kento Hatanaka – Super Flyweight
- Aoi Yokoyama – Super Flyweight
- Ryo Mandokoro – Super Flyweight
- Reon Fujino – Super Flyweight
- Sho Nogami – Flyweight
- Shogo Tanaka – Flyweight
- Ayumu Hanada – Flyweight
- Josuke Nagata – Flyweight
- Ryu Isogane – Light Flyweight
- Norito Tamaki – Minimumweight
- Ryoma Morimoto – Flyweight
- Reo Saito – Super Featherweight
- Tenshin Nakusawa – Super Flyweight