Tercera Federación
| Organising body | RFEF |
|---|---|
| Founded | 6 May 2020 |
| First season | 2021–22 |
| Country | Spain |
| Confederation | UEFA |
| Number of clubs | 320 (2021–22) 288 (2022–23) 324 (2023–24) 325 (2024–25) |
| Level on pyramid | 5 |
| Promotion to | Segunda Federación |
| Relegation to | Divisiones Regionales |
| Domestic cup(s) | Copa del Rey Copa Federación |
| Broadcaster(s) | tvG2, laOtra, PTV Córdoba |
| Current: 2024–25 Tercera Federación | |
Tercera Federación, previously known as Tercera RFEF, is the fifth tier of the Spanish football league system. It is below the La Liga, Segunda División, and its fellow semi-professional divisions Primera Federación and Segunda Federación. It was founded in 1929 as the third tier, and dropped down to the fourth and fifth tiers in 1977 and 2021, respectively.