2017–18 Copa Federación de España
The 2017–18 Copa Federación de España was the 25th edition of the Copa Federación de España, also known as Copa RFEF, a knockout competition for Spanish football clubs in Segunda División B and Tercera División. Pontevedra won the tournament after winning 1–0 on aggregate score to Ontinyent.
The champion won the trophy, a cash prize of €90,152 and the qualification for the next year tournament. The runner-up received a cash prize of €30,051 and every semifinalist €12,020. Additionally, each winner of autonomous community tournament received €3,005.
The competition began in late July 2017 with the first games of the Regional stages and finished 11 April 2018 with the national final.
Regional tournaments
West Andalusia and Ceuta tournament
The draw was made 4 August.Semifinal
Final
Match was abandoned at halftime after power failure and Algeciras renounced to continue the match.East Andalusia and Melilla tournament
was the only registered team and qualified directly for national phase.Aragon tournament
For the 2017–18 edition, the Aragonese Football Federation agreed to change the competition format to two groups of four teams, where after a single-leg round robin tournament, the two group winners will qualify to the Regional final.Group 1
Group 2
Final
Asturias tournament">Copa Federación de España (Asturias tournament)">Asturias tournament
The twelve qualified teams were divided into four groups of three teams, where the winners will qualify for the semifinals. Teams were be drawn according to their league positions in the previous season.The final will be played at Estadio El Bayu, Siero, as part of the celebrations of the 100th anniversary of Club Siero.
| Pot 1 | Pot 2 | Pot 3 |
| Sporting Gijón BTH Lealtad Caudal Langreo | Tuilla Oviedo B Marino Luanco Covadonga | Condal Ceares Llanes Colunga |
Group 1
Group 2
Group 3
Group 4
Final bracket
Final
Balearic Islands tournament
Final
Basque Country tournament">Copa Federación de España (Basque tournament)">Basque Country tournament
Four teams of the Group 4 of Tercera División and two of Segunda División B registered for the tournament. Tournament will be played in two stages, the first with two groups of three teams and the winner will play the final over two matches. The group stage phase was drawn on 4 September by Basque Football Federation.Group 1
Group 2
Final
Canary Islands tournament
Final
Cantabria tournament">Copa Federación de España (Cantabria tournament)">Cantabria tournament
Teams qualified between second and ninth place in 2016–17 Tercera División Group 3 registered for playing the competition. The bracket was drawn on 2 August. Quarter-finals and Semi-finals were played in Santa Cruz de Bezana.Final
Castile-La Mancha tournament">Trofeo Junta de Comunidades de Castilla-La Mancha">Castile-La Mancha tournament
The Castile-La Mancha Football Federation announced the Copa Junta de Comunidades de Castilla La Mancha as the regional Copa RFEF qualifying tournament.Final
Castile and León tournament">Copa Federación de España (Castile and León tournament)">Castile and León tournament
The Castile and León Football Federation made the draw of the tournament on 6 September 2017.The semifinal between Ávila and Real Burgos was canceled by the regional Football Federation due to not having the seconds enough players for playing this tournament.
Final
Catalonia tournament">Copa Federación de España (Catalonia tournament)">Catalonia tournament
Three teams joined the regional tournament, consisted in a single-game knockout tournament.Final
Extremadura tournament
A record of 17 teams played the tournament, consisting in a single-game knockout tournament. The preliminary round and the round of 16 were firstly drawn, and later each round was drawn independently.Final
Galicia tournament">Copa Federación de España (Galicia tournament)">Galicia tournament
Eleven teams registered for playing the competition. The bracket was drawn on 13 July.Teams were divided into two brackets according to geographical criteria and all matches were played at the stadium of the team that plays in a lower division. The federation paid €3,005 to the winner of the competition.
Final
La Rioja tournament">Copa Federación de España (La Rioja tournament)">La Rioja tournament
Seven teams will play the regional tournament, consisted in a single-game knockout tournament.Final
Madrid tournament
Final
Murcia tournament">Copa Federación de España (Murcia tournament)">Murcia tournament
Final
Navarre tournament">Copa Federación de España (Navarre tournament)">Navarre tournament
The competition was played in two stages: the first one as a group stage and the final as a single match. The groups were drawn on 5 July 2017.Group 1
Group 2
Final
Valencian Community tournament
The competition will be played in three rounds, the first as a single match and semi-finals and final with home and away matches. The draw was on 11 August 2017.Final
National tournament
The national tournament began 29 November 2017.Qualified teams
;Defending championAtlético Saguntino
;Teams losing Copa del Rey first round
Arcos
Avilés
Olímpic
Peña Sport
Pontevedra
Rápido de Bouzas
Rayo Majadahonda
Tarazona
UCAM Murcia
UD San Fernando
Villanovense
;Winners of Autonomous Communities tournaments
Alavés B
Ardoi
Betis Deportivo
Burgos
Cartagena B
Escobedo
Huétor Tájar
Langreo
Mallorca B
Ontinyent
Plasencia
San Sebastián de los Reyes
SD Logroñés
Silva
Tenerife B
Utebo
Vilafranca
Villarrobledo
- Team playing in 2017–18 Segunda División B
- Team playing in 2017–18 Tercera División
- Slashed teams withdrew from the competition.
- Team in bold won the competition
Round of 32