UFC 283: Teixeira vs. Hill was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on January 21, 2023, at the Jeunesse Arena in Rio de Janeiro, Brazil.

[3] That event took place behind closed doors (for the first time in the promotion's history) after Ibaneis Rocha, the governor of the Federal District (where Brasília is located), announced that large gatherings had been suspended due to the COVID-19 pandemic.

[4] A UFC Light Heavyweight Championship bout for the vacant title between former champion Glover Teixeira and Jamahal Hill headlined the event.

[6] After that contest ended in a split draw, the organization decided to book Teixeira and Hill, who was scheduled to headline an event against former title challenger Anthony Smith in early March.

[10] A UFC Flyweight Championship unification tetralogy bout between current two-time champion Deiveson Figueiredo and former champion/current interim title holder Brandon Moreno took place at the event.