# 1931 Copa del Rey

The Republic's Cup 1931 was the 31st staging of the Copa del Rey, the Spanish football cup competition.
With the proclamation of the Second Spanish Republic on April 14, all teams with "Real" ("Royal") in their names, changed it due to anti-monarchic reasons. Real Sociedad changes to Donostia FC. Most of this changes were done between first and second legs of the first round.
The competition started on April 12, 1931, and concluded on June 21, 1931, with the final, held at the Estadio Chamartín in Madrid. Athletic Bilbao won their 11th title, the second in a row.

## Teams

* Andalusia: Sevilla FC, Betis Balompié
* Aragón: Iberia SC, Patria Aragón
* Asturias: Oviedo FC, Sporting de Gijón
* Balearic Islands: RCD Mallorca
* Cantabria: Racing de Santander, Eclipse FC
* Castile and León: Cultural y Deportiva Leonesa, Valladolid Deportivo
* Catalonia: FC Barcelona, CD Sabadell, FC Badalona
* Extremadura: Don Benito FC
* Galicia: Celta de Vigo, Deportivo La Coruña
* Gipuzkoa: Unión Club, Donostia FC, CD Logroño
* Murcia: Murcia FC, Lorca FC
* Center Region: Madrid CF, Athletic Madrid, Racing de Madrid
* Valencia: Valencia CF, CD Castellón
* Biscay: Athletic Bilbao, CD Alavés, Arenas Club

## Round of 32

The first leg was played on April 12. The second leg was played on May 3.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Racing de Madrid | 3–8 | Sevilla FC | 2–0 | 1–8 |
| Betis Balompié | 6–5 | Donostia | 5–1 | 1–4 |
| FC Barcelona | 12–1 | Don Benito | 9–0 | 3–1 |
| CD Alavés | 4–5 | CD Sabadell | 2–2 | 2–3 |
| Unión Club | 4–2 | Celta Vigo | 3–1 | 1–1 |
| Racing Santander | 1–7 | Arenas Club | 0–2 | 1–5 |
| CD Logroño | 15–1 | Cultural Leonesa | 7–0 | 8–1 |
| Valencia CF | 5–4 | Iberia SC | 2–0 | 3–4 |
| RCD Mallorca | 1–3 | CD Castellón | 1–0 | 0–3 |
| Valladolid Deportivo | 4–2 | Athletic Madrid | 2–1 | 2–1 |
| Madrid FC | 9–2 | Eclipse FC | 4–0 | 5–2 |
| Deportivo La Coruña | 1-3 | Murcia FC | 0–1 | 1–2 |
| FC Badalona | withdrew | CD Patria Aragón | | |
| Oviedo FC | withdrew | Lorca Deportiva | | |
Athletic Bilbao and Sporting Gijón received a bye.

## Round of 16

The first leg was played on May 10. The second leg was played on May 17.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Valencia CF | 4–3 | FC Barcelona | 2–2 | 2–1 |
| FC Badalona | 1–2 | Betis Balompié | 1–0 | 0–2 |
| Athletic Bilbao | 5–3 | CD Sabadell | 4–0 | 1–3 |
| Sevilla FC | 4–4 | CD Castellón | 3–1 | 1–3 |
| Oviedo FC | 1–6 | Arenas Club | 1–2 | 0–4 |
| Unión Club | 4–1 | Sporting Gijón | 4–1 | 0–0 |
| Valladolid Deportivo | 0–4 | CD Logroño | 0–0 | 0-4 |
| Madrid FC | 3–0 | Murcia | 3–0 | 0–0 |
* Tiebreaker
Played in Madrid on May 19.
| Team 1 | Score | Team 2 |
| CD Castellón | 2–1 | Sevilla FC |

## Quarter-finals

The first leg was played on May 24. The second leg was played on May 31.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Arenas Club | 3–3 | Valencia CF | 2–2 | 1–1 |
| Unión Club | 2–6 | Athletic Bilbao | 2–2 | 0–4 |
| Betis Balompié | 3–1 | Madrid FC | 3–0 | 0–1 |
| CD Castellón | 2–3 | CD Logroño | 2–0 | 0–3 |
* Tiebreaker
Played in Barcelona on June 2.
| Team 1 | Score | Team 2 |
| Arenas Club | 2–1 | Valencia CF |

## Semi-finals

The first leg was played on June 7. The second leg was played on June 14.
| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| CD Logroño | 3-12 | Athletic Bilbao | 0–6 | 3–6 |
| Arenas Club | 2–2 | Betis Balompié | 2–1 | 0–1 |
* Tiebreaker
Played in Madrid on June 16.
| Team 1 | Score | Team 2 |
| Betis Balompié | 2–0 | Arenas Club |

## Final

* Copa del Rey 1931 winners
* Athletic Bilbao 11th title