2023 Liga 1 (Peru)

The season was originally scheduled to begin on 21 January, but the first two matchdays were postponed due to the 2022–2023 Peruvian protests.

[2] Universitario were the champions, winning their twenty-seventh league title after defeating Alianza Lima in the two-legged final with a 3–1 aggregate score.

The promoted teams replaced Ayacucho, Universidad San Martín and Carlos Stein, who were relegated at the end of the previous season.

As the champions of the Apertura (Alianza Lima) and Clausura (Universitario) tournaments were also the top two teams in the aggregate table, both teams qualified directly to the final, omitting the semifinal matches (Regulations Article 7.3.1.8).

Alianza Lima had the chance to decide the order of legs as the finalist better placed in the aggregate table.