ONE Championship (formerly ONE FC) unofficial rankings. The rankings are compiled by MMAtion staff, basing on the latest World MMA rankings. Currently, we rank the top 10 ONE fighters in 9 weight classes and the top 20 pound-for-pound fighters.
Fighters not having a single fight in the promotion during the last 18 months or having less than 2 bouts under the ONE Championship banner (for newly signed fighters there has to be at least one bout) are not included in the lists.
Last Updated: February 27, 2019
| Yosuke Saruta (Champion) | Japan | |
| 1 | Joshua Pacio | Philippines |
| 2 | Alex Silva | Brazil |
| 3 | Yoshitaka Naito | Japan |
| 4 | Hayato Suzuki | Japan |
| 5 | Rene Catalan | Philippines |
| 6 | Riku Shibuya | Japan |
| 7 | Dejdamrong Sor Amnuaysirichoke | Thailand |
| 8 | Kritsada Kongsrichai | Thailand |
| 9 | Pengshuai Liu | China |
| 10 | Pongsiri Mitsatit | Thailand |
| Adriano Moraes (Champion) | Brazil | |
| 1 | Reece McLaren | Australia |
| 2 | Danny Kingad | Philippines |
| 3 | Geje Eustaquio | Philippines |
| 4 | Tatsumitsu Wada | Japan |
| 5 | Kairat Akhmetov | Kazakhstan |
| 6 | Ma Hao Bin | China |
| 7 | Gianni Subba | Malaysia |
| 8 | Chan Rothana | Cambodia |
| 9 | Yodsanan Sityodtong | Thailand |
| 10 | Anatpong Bunrad | Thailand |
| Kevin Belingon (Champion) | Philippines | |
| 1 | Bibiano Fernandes | Brazil |
| 2 | Muin Gafurov | Tajikistan |
| 3 | Yusup Saadulaev | Russia |
| 4 | Mark Abelardo | New Zealand |
| 5 | Shuya Kamikubo | Japan |
| 6 | Leandro Issa | Brazil |
| 7 | Andrew Leone | United States |
| 8 | Masakazu Imanari | Japan |
| 9 | Dae Hwan Kim | South Korea |
| 10 | Daichi Takenaka | Japan |
| Martin Nguyen (Champion) | Australia | |
| 1 | Christian Lee | Singapore |
| 2 | Narantungalag Jadambaa | Mongolia |
| 3 | Marat Gafurov | Russia |
| 4 | Edward Kelly | Philippines |
| 5 | Tetsuya Yamada | Japan |
| 6 | Kazuki Tokudome | Japan |
| 7 | Bruno Pucci | Brazil |
| 8 | Li Kai Wen | China |
| 9 | Kazunori Yokota | Japan |
| 10 | Rafael Nunes | Brazil |
| Eduard Folayang (Champion) | Philippines | |
| 1 | Shinya Aoki | Japan |
| 2 | Saygid Guseyn Arslanaliev | Turkey / Russia |
| 3 | Lowen Tynanes | United States |
| 4 | Ev Ting | Malaysia / New Zealand |
| 5 | Ariel Sexton | Costa Rica |
| 6 | Timofey Nastyukhin | Russia |
| 7 | Amir Khan | Singapore |
| 8 | Koji Ando | Japan |
| 9 | Adrian Pang | Australia |
| 10 | Rasul Yakhyaev | Russia |
| Zebaztian Kadestam (Champion) | Sweden | |
| 1 | Tyler McGuire | United States |
| 2 | Kiamrian Abbasov | Kyrgyzstan |
| 3 | Dae Sung Park | South Korea |
| 4 | Luis Santos | Brazil |
| 5 | Agilan Thani | Malaysia |
| 6 | Sherif Mohamed | Egypt |
| 7 | Trestle Tan | Philippines |
| 8 | ||
| 9 | ||
| 10 |
| Aung La N Sang (Champion) | Myanmar | |
| 1 | Leandro Ataides | Brazil |
| 2 | Vitaly Bigdash | Russia |
| 3 | Gilberto Galvao | Brazil |
| 4 | Michal Pasternak | Poland |
| 5 | Jake Butler | United States |
| 6 | ||
| 7 | ||
| 8 | ||
| 9 | ||
| 10 |
| Angela Lee (Champion) | United States / Singapore | |
| 1 | Mei Yamaguchi | Japan |
| 2 | Gina Iniong | Philippines |
| 3 | Jihin Radzuan | Malaysia |
| 4 | Istela Nunes | Brazil |
| 5 | Puja Tomar | India |
| 6 | Priscilla Hertati Lumban Gaol | Indonesia |
| 7 | Jomary Torres | Philippines |
| 8 | Jenny Huang | Taiwan |
| 9 | Rika Ishige | Thailand |
| 10 | April Osenio | Philippines |
| Xiong Jing Nan (Champion) | China | |
| 1 | Tiffany Teo | Singapore |
| 2 | Laura Balin | Argentina |
| 3 | Ann Osman | Malaysia |
| 4 | May Ooi | Singapore |
| 5 | Michelle Nicolini | Brazil |
| 6 | Miao Jie | China |
| 7 | Rebecca Heintzman-Rozewski | United States |
| 8 | ||
| 9 | ||
| 10 |
| 1 | Kevin Belingon | Bantamweight | Philippines |
| 2 | Bibiano Fernandes | Bantamweight | Brazil |
| 3 | Shinya Aoki | Lightweight | Japan |
| 4 | Martin Nguyen | Featherweight | Vietnam / Australia |
| 5 | Eduard Folayang | Lightweight | Philippines |
| 6 | Christian Lee | Featherweight | Singapore |
| 7 | Zebaztian Kadestam | Welterweight | Sweden |
| 8 | Saygid Guseyn Arslanaliev | Lightweight | Turkey / Russia |
| 9 | Aung La N Sang | Light heavyweight/ Middleweight | Myanmar |
| 10 | Narantungalag Jadambaa | Featherweight | Mongolia |
| 11 | Adriano Moraes | Flyweight | Brazil |
| 12 | Marat Gafurov | Featherweight | Russia |
| 13 | Reece McLaren | Flyweight | Australia |
| 14 | Lowen Tynanes | Lightweight | United States |
| 15 | Brandon Vera | Heavyweight | Philippines / United States |
| 16 | Leandro Ataides | Middleweight | Brazil |
| 17 | Danny Kingad | Flyweight | Philippines |
| 18 | Ev Ting | Lightweight | Malaysia / New Zealand |
| 19 | Ariel Sexton | Lightweight | Costa Rica |
| 20 | Muin Gafurov | Bantamweight | Tajikistan |