UFC 277: Peña vs. Nunes 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 30, 2022, at American Airlines Center in Dallas, Texas, United States.

[3] The pairing previously met at UFC 269 in last December, where Peña captured the title by submission in the second round in a major upset.

An interim UFC Flyweight Championship bout between former champion Brandon Moreno and Kai Kara-France took place at the event.

[16] However, Agapova was forced out of the fight due to a knee injury and was replaced by Joselyne Edwards who had fought only six weeks prior in UFC 275.

[21] However, Bahamondes pulled out on July 15 and Klein was relocated against Mason Jones a week earlier at UFC Fight Night: Blaydes vs.

Both bouts proceeded at catchweight with Edwards and Cosce each fined 20% of their purses, which went to their opponents Ji Yeon Kim and Mike Mathetha respectively.

[30] On February 3, 2023, it was announced that the United States Anti-Doping Agency (USADA) suspended Hamdy Abdelwahab for two years after he tested positive twice for anabolic agent methenolone and its metabolites.