The 2024–25 Segunda Federación season will be the fourth for the Segunda Federación, the fourth highest level in the Spanish football league system.

Ninety teams will participate, divided into five groups of eighteen clubs each based on geographical proximity.

In each group, the champions automatically promote to Primera Federación, and the second to fifth placers will play promotion play-offs.

The last five teams in each group will be relegated to the Tercera Federación; in addition, the four worst teams classified 13th in their group will play play-offs to determine the last two relegation places.

[2] On 4 July 2024, RFEF confirmed the administrative relegation of Ursaria due to financial issues,[3] with Móstoles URJC replacing them on 22 July.