UFC Vegas 25: Reyes vs. Procházka is a mixed martial arts event produced by the Ultimate Fighting Championship that will take place on May 1, 2021 at the UFC APEX, Las Vegas United States.
| Weight Class | Fight Card |
| Light Heavyweight | Dominick Reyes vs. Jiří Procházka |
| Weight Class | Fight Card |
| Women Strawweight | Randa Markos vs. Luana Pinheiro |
| Women Strawweight | Loma Lookboonme vs. Sam Hughes |
| Middleweight | Andreas Michailidis vs. KB Bhullar |
