UFC 299: O'Malley vs. Vera 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on March 9, 2024, at the Kaseya Center in Miami, Florida, United States.

[3] A UFC Bantamweight Championship bout between current champion Sean O'Malley and Marlon Vera headlined the event.

[10] They were previously expected to headline UFC Fight Night: Almeida vs. Lewis in November 2023 but Blaydes withdrew for unknown reasons.

[15] However, Murphy pulled out due to injury and Silva is now expected to face former KSW Women's Flyweight Champion Ariane Lipski at UFC on ESPN 55.

[18] They were previously expected to meet at UFC Fight Night: Dawson vs. Green in October 2023 but Lins withdrew the day of the event for unknown reasons.