Most title reigns: since 2001
Most separate reigns as undisputed UFC champion.
Reigns are derived from championship bouts. When a belt was vacated or stripped outside a title fight, the reign is shown ending at the next title fight in that division, so a few run long; a title awarded without a fight (José Aldo's in 2010, for one) starts at the champion's first UFC title fight.
An interim champion promoted to undisputed starts a new reign on the promotion date.
102 fighters.
| # | Fighter | Total |
|---|---|---|
| =29 | Forrest Griffin | 1 |
| =29 | Francis Ngannou | 1 |
| =29 | Frank Mir | 1 |
| =29 | Frankie Edgar | 1 |
| =29 | Germaine de Randamie | 1 |
| =29 | Glover Teixeira | 1 |
| =29 | Holly Holm | 1 |
| =29 | Jack Della Maddalena | 1 |
| =29 | Jamahal Hill | 1 |
| =29 | Jan Blachowicz | 1 |
| =29 | Jens Pulver | 1 |
| =29 | Jessica Andrade | 1 |
| =29 | Jiri Prochazka | 1 |
| =29 | Joanna Jedrzejczyk | 1 |
| =29 | Johny Hendricks | 1 |
| =29 | Jose Aldo | 1 |
| =29 | Josh Barnett | 1 |
| =29 | Joshua Van | 1 |
| =29 | Junior Dos Santos | 1 |
| =29 | Justin Gaethje | 1 |
| =29 | Kamaru Usman | 1 |
| =29 | Kayla Harrison | 1 |
| =29 | Khabib Nurmagomedov | 1 |
| =29 | Khamzat Chimaev | 1 |
| =29 | Leon Edwards | 1 |
| =29 | Luke Rockhold | 1 |
| =29 | Lyoto Machida | 1 |
| =29 | Mackenzie Dern | 1 |
| =29 | Magomed Ankalaev | 1 |
| =29 | Matt Serra | 1 |
| =29 | Mauricio Rua | 1 |
| =29 | Max Holloway | 1 |
| =29 | Merab Dvalishvili | 1 |
| =29 | Michael Bisping | 1 |
| =29 | Miesha Tate | 1 |
| =29 | Murilo Bustamante | 1 |
| =29 | Natalia Silva | 1 |
| =29 | Nicco Montano | 1 |
| =29 | Quinton Jackson | 1 |
| =29 | Rafael Dos Anjos | 1 |
| =29 | Raquel Pennington | 1 |
| =29 | Rashad Evans | 1 |
| =29 | Renan Barao | 1 |
| =29 | Ricco Rodriguez | 1 |
| =29 | Rich Franklin | 1 |
| =29 | Robbie Lawler | 1 |
| =29 | Ronda Rousey | 1 |
| =29 | Sean O'Malley | 1 |
| =29 | Sean Sherk | 1 |
| =29 | Tom Aspinall | 1 |