The 2023 Campeonato Brasileiro Série A (officially the Brasileirão Assaí 2023 for sponsorship reasons) was the 67th season of the Campeonato Brasileiro Série A, the top level of professional football in Brazil, and the 20th edition in a double round-robin since its establishment in 2003.
The competition began on 15 April and ended on 6 December 2023.
Defending champions Palmeiras won their twelfth league championship in this season, clinching the title on the final day of the season with a 1–1 draw against Cruzeiro.
Cruzeiro became the first club to be promoted on 21 September 2022 after a 3–0 win against Vasco da Gama.
The clubs can have a maximum of seven foreign players in their Campeonato Brasileiro squads per match, but there is no limit of foreigners in the clubs' squads.