Poids Mi-Lourds Hommes
 | Oli Thompson | 0-2-0 UFC | #5219 |  |
 | Onassis Parungao | 1-0-0 UFC | #6304 |  |
 | Osama Elsaidy | 0-1-0 REC | #7174 |  |
 | Oumar Sy | 3-2-0 UFC | #370 |  |
 | Ovince St. Preux | 15-13-0 UFC | #283 |  |
 | Panagiotis Stroumpoulis | 0-2-0 REC | #6972 |  |
 | Paolo Anastasi | 0-1-0 REC | #7559 |  |
 | Patrick Cummins | 6-7-0 UFC | #1785 | |
 | Patryk Grabowski | #7862 |  | |
 | Paul Buentello | 3-3-0 UFC | #2923 | |
 | Paul Craig | 9-10-1, 1NC UFC | #584 |  |
 | Paul Jones | 1-1-0 UFC | #5537 | |
 | Paulin Begai | 5-5-1 REC | #1002 | |
 | Paulo Costa | 8-4-0 UFC | #113 |  |
 | Paulo Renato Jr. | 0-2-0 REC | #4970 | |
 | Pavol Langer | 3-5-0 REC | #3311 |  |
 | Pawan Maan Singh | 0-1-0 REC | #5889 |  |
 | Pedro Lay | 1-1-0 REC | #2759 |  |
 | Phil Davis | 9-3-0, 1NC UFC | #556 | |
 | Piotr Chudzik | 1-0-0 REC | #948 | |