2023 Tercera Federación play-offs

The 2023 Tercera Federación play-offs to Segunda Federación from Tercera Federación (promotion play-offs) are the final play-offs for the promotion from 2022–23 Tercera Federación to 2023–24 Segunda Federación.

Format
Group champions will be promoted directly to the Segunda Federación. Due to the remodeling of the RFEF leagues, as of 2021–22 season the promotion play-off is divided into two stages: regional and national. Four teams from each group participate in the regional stage, which were classified between places second and fifth of the regular season. Since 2022–23 season the regional stage is a series of two matches. The second classified will face the fifth classified; and the third will do the same with the fourth. The winners of the two series will play a series to determine the team that will qualify for the national stage.

In the regional phase, if the aggregated score ends in a draw, extra time will be played, if the same result is maintained at the end of extra time, the best seeded team will win.

The national stage will be played by 18 teams, which won their respective regional play-offs. Since 2022–23 season nine different series will be played to determine the winners of the promotion to Segunda Federación.

As of this season, the RFEF recovered the two-legged knockout system, due to the complaints filed against the single knockout system at a neutral venue that had been implemented after COVID-19 and the subsequent reform of the football leagues organized by the RFEF.

Qualified teams

 * Teams in bold promoted to the Segunda RFEF
 * Teams in italics progressed to the national stage

Group 1 – Galicia

 * Group champions: Deportivo Fabril

Group 2 – Asturias

 * Group champions: Covadonga

Group 3 – Cantabria

 * Group champions: Cayón

Group 4 – Basque Country

 * Group champions: Barakaldo

Group 5 – Catalonia

 * Group champions: Europa

Group 6 – Valencian Community

 * Group champions: Orihuela

Group 7 – Community of Madrid

 * Group champions: Ursaria

Group 8 – Castile and León

 * Group champions: Arandina

Group 9 – Eastern Andalusia

 * Group champions: Marbella

Group 10 – Western Andalusia

 * Group champions: Antoniano

Group 11 – Balearic Islands

 * Group champions: Andratx

Group 12 – Canary Islands

 * Group champions: Mensajero

Group 13 – Region of Murcia

 * Group champions: Águilas

Group 14 – Extremadura

 * Group champions: Llerenense

Group 15 – Navarre

 * Group champions: Valle de Egüés

Group 16 – La Rioja

 * Group champions: Náxara

Group 17 – Aragon

 * Group champions: Robres, however, was relegated to Regional Preferente de Aragón due to CD Ebro's relegation from Segunda Federación. Barbastro occupied the promotion place of the group.

Group 18 – Castilla–La Mancha

 * Group champions: Manchego Ciudad Real

Qualified teams
Bold indicates teams that were promoted

Matches

 * First leg


 * Second leg

Promoted teams

 * The 18 teams that were promoted through regular season groups are included.
 * The numbers of years after the last promotion are referred to the last participation of the club in Segunda División B or Segunda Federación if the team was relegated one year ago.