2023 Primera Nacional

The 2023 Argentine Primera Nacional, also known as the Campeonato de Primera Nacional "Campeones del Mundo" 2023, was the 39th season of the Primera Nacional, the second-tier competition of Argentine football. The season began on 3 February and ended on 2 December 2023. Thirty-seven teams competed in the league, thirty-three of which took part in the 2022 season, along with two teams relegated from Primera División, one team promoted from Torneo Federal A and another one promoted from Primera B Metropolitana.

Independiente Rivadavia promoted to Primera División and won the competition for the first time in this season, defeating Almirante Brown 2–0 after extra time in the championship final played on 29 October 2023. The other promoted side was Deportivo Riestra, who won the Torneo Reducido after defeating Deportivo Maipú in the final.