Most losses: since 2001
Most UFC losses.
2,450 fighters.
| # | Fighter | Total |
|---|---|---|
| =1987 | John Gunther | 1 |
| =1987 | John Kolosci | 1 |
| =1987 | John Marsh | 1 |
| =1987 | John Polakowski | 1 |
| =1987 | John Teixeira | 1 |
| =1987 | Jon Jones | 1 |
| =1987 | Jon Madsen | 1 |
| =1987 | Jon Manley | 1 |
| =1987 | Jonathan Meunier | 1 |
| =1987 | Jose Torres | 1 |
| =1987 | Josefine Knutsson | 1 |
| =1987 | Josh Bryant | 1 |
| =1987 | Josh Hendricks | 1 |
| =1987 | Josh Rafferty | 1 |
| =1987 | Josh Shockman | 1 |
| =1987 | Joshua Van | 1 |
| =1987 | Joshua Weems | 1 |
| =1987 | Juan Espino | 1 |
| =1987 | Jules Bruchez | 1 |
| =1987 | Julien Leblanc | 1 |
| =1987 | Junie Browning | 1 |
| =1987 | Justin Frazier | 1 |
| =1987 | Justin James | 1 |
| =1987 | Justin Willis | 1 |
| =1987 | Justin Wren | 1 |
| =1987 | Jutaro Nakao | 1 |
| =1987 | Karine Gevorgyan | 1 |
| =1987 | Karl Williams | 1 |
| =1987 | Keigo Kunihara | 1 |
| =1987 | Keith Berish | 1 |
| =1987 | Keith Rockel | 1 |
| =1987 | Kelly Dullanty | 1 |
| =1987 | Kerry Schall | 1 |
| =1987 | Kevin Ferguson | 1 |
| =1987 | Kevin Randleman | 1 |
| =1987 | Khamzat Chimaev | 1 |
| =1987 | Khusein Askhabov | 1 |
| =1987 | Kimo Leopoldo | 1 |
| =1987 | Kiru Sahota | 1 |
| =1987 | Kit Cope | 1 |
| =1987 | Kody Steele | 1 |
| =1987 | Koji Oishi | 1 |
| =1987 | Kristian Rothaermel | 1 |
| =1987 | Kristof Midoux | 1 |
| =1987 | Kurtis Campbell | 1 |
| =1987 | Kyle Watson | 1 |
| =1987 | Lance Gibson Jr. | 1 |
| =1987 | Lawrence Lui | 1 |
| =1987 | Leah Letson | 1 |
| =1987 | Leigh Remedios | 1 |