Most title defences: since 2001
Most successful title defences across all reigns.
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.
A drawn title fight keeps the belt but is not counted as a defence.
62 fighters.
| # | Fighter | Total |
|---|---|---|
| =46 | Jan Blachowicz | 1 |
| =46 | Junior Dos Santos | 1 |
| =46 | Lyoto Machida | 1 |
| =46 | Mackenzie Dern | 1 |
| =46 | Michael Bisping | 1 |
| =46 | Murilo Bustamante | 1 |
| =46 | Quinton Jackson | 1 |
| =46 | Rafael Dos Anjos | 1 |
| =46 | Randy Couture | 1 |
| =46 | Sean O'Malley | 1 |
| =46 | Sean Sherk | 1 |
| =46 | Tom Aspinall | 1 |