UFC on ABC: Emmett vs. Topuria (also known as UFC on ABC 5) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 24, 2023 at the VyStar Veterans Memorial Arena in Jacksonville, Florida, United States.

[2] A featherweight bout between former interim UFC Featherweight Championship challenger Josh Emmett and Ilia Topuria was originally expected to serve as the main event of UFC on ESPN: Vettori vs. Cannonier one week earlier, but it was rescheduled to headline this event instead.

[5] A lightweight bout between Trevor Peek and Victor Martinez was expected to take place at the event.

[8] However, on June 15 it was announced that Soriano pulled out due to undisclosed reasons and was replaced by Cody Brundage.

Radzhabov's bout proceeded at catchweight and he was fined 20 percent of his purse, which went to his opponent Mateusz Rebęcki.