| Best MMA Fighter ESPY Award | |
| Awarded For: | best mixed martial arts fighter |
| Presenter: | ESPN |
| Year: | 2019 |
| Holder: | Sean O'Malley |
The Best MMA Fighter ESPY Award is an annual award honoring the achievements of an individual from the world of mixed martial arts. The Best MMA Fighter ESPY Award trophy is presented to the mixed martial arts fighter adjudged to be the best in a given calendar year at the annual ESPY Awards ceremony. It was first awarded as part of the ESPY Awards in 2019, succeeding the Best Fighter ESPY Award, which encompassed both boxers and MMA fighters.
The inaugural winner of the Best MMA Fighter ESPY Award was American UFC Heavyweight Champion Daniel Cormier, who won and defended the championship in 2018.
| scope=col | Year | scope=col class=unsortable | Image | scope=col | Winner | scope=col | Nationality | scope=col | Sanctioning body or league | scope=col | Weight class | scope=col class=unsortable | Nominees | scope=col class=unsortable | Ref. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | scope=row |  United States | Ultimate Fighting Championship | Heavyweight | align=left | [1] [2] | |||||||||
| 2020 | Not awarded due to the COVID-19 pandemic | ||||||||||||||
| 2021 | scope=row |  Russian Federation | Ultimate Fighting Championship | Lightweight | align=left | [3] | |||||||||
| 2022 | scope=row |  Brazil | Ultimate Fighting Championship | Lightweight | align=left | [4] | |||||||||
| 2023 | scope=row | United States | Ultimate Fighting Championship | Heavyweight | align=left | [5] | |||||||||
| 2024 | scope=row | United States | Ultimate Fighting Championship | Bantamweight | align=left | [6] | |||||||||