Brandon Moreno Carrillo (born December 7, 1993) is a Mexican professional mixed martial artist.

[12] In a rare move, Moreno debuted in the UFC while his season of The Ultimate Fighter was still airing.

[14] In his second fight for the promotion, Moreno returned to face Ryan Benoit on December 3, 2016, at The Ultimate Fighter: Tournament of Champions Finale.

[22] Moreno subsequently tested positive for clenbuterol from an in-competition urine sample collected on August 6, 2017, a day after his fight with Pettis.

[24] However, the bout was canceled after Borg was injured by glass from a bus window that was smashed by Conor McGregor.

[24][25] The pairing was left intact and quickly rescheduled and was expected to take place on May 19, 2018, at UFC Fight Night 129.

[26] However, Borg withdrew from the bout to take care of his child from brain surgery,[27] and was replaced by Alexandre Pantoja.

[30] Moreno signed a multi-fight contract with the Legacy Fighting Alliance and made his promotional debut against the prevailing Flyweight Champion Maikel Perez at LFA 69 on June 7, 2019.

[39] As the first bout of his new contract, Moreno was expected to face Alex Perez on November 21, 2020, at UFC 255.

[40] However, on October 2, it was announced that Cody Garbrandt, who was scheduled to fight Deiveson Figueiredo for the UFC Flyweight Championship at the event, pulled out due to a torn bicep and was replaced by Perez.

[48] Moreno dominated the striking and grappling exchanges and submitted Figueiredo with a rear naked choke in the third round, becoming the first Mexican UFC champion in the process.

[59] Moreno won the bout and undisputed title via technical knockout just before the fourth round after the ringside doctor stopped the fight due to Figueiredo's eye swelling shut.

[65] However, Albazi withdrew due to a neck injury and was replaced by former title challenger Brandon Royval.

[68] It was reported that the bout between Moreno and Amir Albazi was re-scheduled to take place on November 9, 2024 in the main event at UFC Fight Night 247.

[71] Moreno is scheduled to face Steve Erceg in the main event on April 5, 2025 at UFC on ESPN 64 in Mexico City.

In the opening round, Moreno submitted Ryan Carroll via D'arce choke, then defeated Beau Brooks by TKO via strikes in the semi-finals.