UFC on ESPN: Vettori vs. Cannonier (also known as UFC on ESPN 47 and UFC Vegas 75) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 17, 2023 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States.
A featherweight bout between former interim UFC Featherweight Championship challenger Josh Emmett and Ilia Topuria was expected to headline the event. However, the bout was postponed one week to headline . The UFC then opted to book a middleweight bout between former UFC Middleweight Championship challengers Marvin Vettori and Jared Cannonier as the event's new headliner.
A bantamweight bout between Raoni Barcelos and Miles Johns was expected to take place at the event. However, Johns withdrew due to injury and the bout was canceled.
Zhalgas Zhumagulov and former LFA Flyweight Champion Felipe Bunes were expected to meet in a flyweight bout. However, Bunes pulled out during fight week due to a drug test subject to further analysis and Zhumagulov was rescheduled against Joshua Van a week later at .
The following fighters received $50,000 bonuses.