The UFC, Bellator and ONE currently recognise male and female world champions in a variety of weight classes. Here is the current title picture across the board.
Note: These lists are updated each Monday after a fight weekend.
UFC (Men)
- Heavyweight : Jon Jones; ( Interim): Tom Aspinall
- Light Heavyweight : Alex Pereira
- Middleweight : Dricus du Plessis
- Welterweight : Belal Muhammad
- Lightweight : Islam Makachev
- Featherweight : Ilia Topuria
- Bantamweight : Sean O'Malley
- Flyweight : Alexandre Pantoja
UFC (Women)
- Bantamweight : Raquel Pennington
- Flyweight : Alexa Grasso
- Strawweight : Zhang Weili
Bellator (Men)
- Heavyweight : Ryan Bader
- Light Heavyweight : Corey Anderson
- Middleweight : Johnny Eblen
- Welterweight : Ramzan Kuramagomedov
- Lightweight: Usman Nurmagomedov
- Featherweight : Patricio Pitbull
- Bantamweight : Patchy Mix
Bellator (Women)
- Featherweight : Cris Cyborg
- Flyweight : Liz Carmouche
ONE Championship (Men)
- Heavyweight: Anatoly Malykhin
- Light heavyweight: Anatoly Malykhin
- Middleweight: Anatoly Malykhin
- Welterweight: Christian Lee
- Lightweight: Christian Lee
- Featherweight: Tang Kai
- Bantamweight: Fabricio Andrade
- Flyweight: Demetrious Johnson
- Strawweight: Joshua Pacio
ONE Championship (Women)
- Strawweight: Xiong Jing Nan
- Atomweight: Stamp Fairtex