Tous les combattants
 | Israel Aquino | 0-1-0 REC | #6040 |  |
 | Israel Delgado | 1-1-0 REC | #5424 | |
 | Issa Isakov | 0-1-0 REC | #4617 |  |
 | Issei Tamura | 1-2-0 UFC | #4009 |  |
 | Issouf Doumbia | 0-1-0 REC | #5476 | |
 | Istela Nunes | 0-5-0 UFC | #2456 |  |
| Istvan Schulcz | 1-0-0 REC | #7375 |  |
 | Italo Cruz | 2-1-0 REC | #587 | |
 | Italo Gomes | 0-2-0 REC | #3716 | |
 | Italo Julio | 0-1-0 REC | #6821 | |
 | Itay Tratner | 0-1-0 REC | #6804 |  |
 | Itso Babulaidze | 2-0-0 REC | #4275 |  |
 | Itsuki Hirata | #6071 | | |
 | Iuri Alcantara | 10-7-0, 1NC UFC | #934 | |
 | Ivan Bogdanov | 2-1-0 REC | #1557 |  |
 | Ivan Buchinger | 8-3-0 REC | #600 |  |
 | Ivan Erslan | 0-3-0 UFC | #2016 |  |
 | Ivan Gnizditskiy | #7230 | | |
 | Ivan Jorge | 2-2-0 UFC | #3215 | |
 | Ivan Klevets | 1-2-0 REC | #1737 |  |
 | Ivan Menjivar | 4-5-0 UFC | #2587 |  |
 | Ivan Salaverry | 3-4-0 UFC | #2692 | |
 | Ivan Serati | 0-1-0 UFC | #5524 |  |
 | Ivan Soloviev | 1-2-0 REC | #1780 | |
 | Ivan Tena | 0-1-0 REC | #7117 | |