Current champion: Deiveson Figueiredo
Champion at end of 2023: Brandon Moreno
Current champion:
Deiveson Figueiredo
Champion at end of 2023:
Brandon Moreno
Flyweight
Current champion:
Alexander Volkanovski
Champion at end of 2023:
Alexander Volkanovski
Current champion:
Alexander Volkanovski
Champion at end of 2023:
Alexander Volkanovski
Featherweight
CCurrent champion:
Islam Makhachev
Champion at end of 2023:
Islam Makhachev
CCurrent champion:
Islam Makhachev
Champion at end of 2023:
Islam Makhachev
Lightweight
Current champion:
Leon Edwards
Champion at end of 2023:
Khamzat Chimaev v
Current champion:
Leon Edwards
Champion at end of 2023:
Khamzat Chimaev v
Welterweight
Current champion:
Alex Pereira
Champion at end of 2023:
Robert Whittaker
Current champion:
Alex Pereira
Champion at end of 2023:
Robert Whittaker
Middleweight
CCurrent champion:
Vacant
Champion at end of 2023:
Magomed Ankalaev
CCurrent champion:
Vacant
Champion at end of 2023:
Magomed Ankalaev
Light heavyweight
Current champion:
Francis Ngannou
Champion at end of 2023: Francis Ngannou
Current champion:
Francis Ngannou
Champion at end of 2023:
Francis Ngannou
Heavyweight
Current champion:
Zhang Weili
Champion at end of 2023:
Zhang Weili
Current champion:
Zhang Weili
Champion at end of 2023:
Zhang Weili
Strawweight
CCurrent champion:
Valentina Shevchenko
Champion at end of 2023:
Valentina Shevchenko
CCurrent champion:
Valentina Shevchenko
Champion at end of 2023:
Valentina Shevchenko
Women's flyweight
Current champion:
Amanda Nunes
Champion at end of 2023:
Amanda Nunes
Current champion:
Amanda Nunes
Champion at end of 2023:
Amanda Nunes
Women's bantamweight