The 2023–24 Championnat National 2 is the 26th season of the fourth tier in the French football league system in its current format.

This season the competition is contested by 56 clubs split geographically across four groups of 14 teams, a change from the previous season, as part of the restructuring of the French football league system.

[1] On 13 July 2023, the FFF ratified the constitution of the competition, and published the groups.

[2] Changes from the 2022–23 season are: The top team in each group will be promoted to 2024–25 Championnat National.

Due to the restructuring of the French football leagues, this season the bottom five teams in each group will be relegated to 2024–25 Championnat National 3, along with the worst performing ninth-placed team.