UFC 284: Makhachev vs. Volkanovski was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on February 12, 2023, at RAC Arena in Perth, Australia.

[2] The event marked the promotion's 16th overall trip to Australia, returning to the country for the first time since UFC 243 in Melbourne in October 2019.

[9][10] The pair was previously expected to headline UFC on ESPN: Whittaker vs. Gastelum in April 2021, but Costa withdrew due to illness.

[12] They were once booked for an event at San Diego on May 16, 2020, but the card was moved to a different location due to the COVID-19 pandemic and the bout eventually never took place.

[15] Perez was rescheduled for a bout against former Rizin Bantamweight Champion Manel Kape at UFC on ESPN: Vera vs. Sandhagen on March 25.

[16] A women's strawweight bout between Loma Lookboonmee and Elise Reed was scheduled for UFC Fight Night: Lewis vs.