UFC on ESPN 51: Luque vs. dos Anjos was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on August 12, 2023, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A welterweight bout between former UFC Lightweight Champion Rafael dos Anjos and Vicente Luque served as the headliner.

Release Date: 2023-08-12