The 2024–25 Tercera Federación season is the fourth for the Tercera Federación, the national fifth level in the Spanish football league system.
It consists of 17 groups with 18 teams each, and one group with 19 teams.
[1] A total of 325 teams made up the league: 27 relegated from the 2023–24 Segunda Federación, 238 retained from the 2023–24 Tercera Federación, and 60 promoted from the regional divisions.
[2]