UFC 264: Poirier vs. McGregor 3 is a mixed martial arts event produced by the Ultimate Fighting Championship that will take place on July 10, 2021 at the T-Mobile Arena in Paradise, Nevada, United States.
| Weight Class | Fight Card |
| Lightweight | Dustin Poirier vs. Conor McGregor |
| Weight Class | Fight Card |
| Women's Flyweight | Jessica Eye vs. Jennifer Maia |
| Featherweight | Ryan Hall vs. Ilia Topuria |
| Flyweight | Jerome Rivera vs. Zhalgas Zhumagulov |
| Middleweight | Omari Akhmedov vs. Brad Tavares |
| Welterweight | Gilbert Burns vs. Stephen Thompson |
| Heavyweight | Tai Tuivasa vs. Greg Hardy |
