Tous les combattants
 | Islam Khapilaev | 0-1-0 REC | #6828 |  |
 | Islam Makhachev | 17-1-0 UFC | #1 |  |
 | Islam Mamedov | 6-1-1 REC | #2149 | |
 | Islam Matsuev | #8099 | | |
 | Islam Meshev | 0-2-0 REC | #4397 | |
 | Islam Omarov | 2-0-0 REC | #1836 | |
 | Islam Reda | 5-0-0 REC | #1223 |  |
 | Islam Taisumov | 1-1-0 REC | #1390 |  |
 | Islam Youssef | 2-1-0 REC | #2223 | |
 | Islam Yunusov | #7800 | | |
 | Islambek Baktybek Uulu | #7786 |  | |
 | Islem Masraf | 2-2-0 REC | #2676 | |
 | Ismael Bonfim | 2-4-0 UFC | #337 |  |
 | Ismail Ismailov | 0-1-0 REC | #6585 | |
 | Ismail Israilov | 1-0-0 REC | #7394 | |
 | Ismail Kelemetov | 1-0-0 REC | #6270 | |
 | Ismail Naurdiev | 4-3-0 UFC | #1169 |  |
 | Israel Adesanya | 13-6-0 UFC | #32 |  |
 | Israel Aquino | 0-1-0 REC | #6506 |  |
 | Israel Delgado | 1-1-0 REC | #5967 | |
 | Issa Hosokawa | #8114 |  | |
 | Issa Isakov | 0-1-0 REC | #4523 |  |
 | Issei Tamura | 1-2-0 UFC | #4329 | |
| Issouf Doumbia | 0-1-0 REC | #6134 | |
 | Istela Nunes | 0-5-0 UFC | #2782 | |