1920 Copa del Rey
|Runners-up||Athletic de Bilbao|
|Goals scored||27 (3 per match)|
The competition started in March 1920 and concluded on May 2, 1920 with the Final, held at the El Molinón in Gijon, in which FC Barcelona lifted the trophy for the 4th time ever with a 2–0 victory over Athletic Bilbao.
- Biscay: Athletic de Bilbao
- Gipuzkoa: Real Unión
- Center Region: Madrid FC
- South Region: Sevilla FC
- Galicia: Real Vigo Sporting
- Asturias: Sporting de Gijón
- Catalonia: FC Barcelona
Real Unión received a bye to the semifinals. Sevilla FC did not appear to play its qualifying matches against FC Barcelona after their proposal to play both matches in Madrid was not followed. FC Barcelona qualified for the semifinals
March 28, 1920
|Sporting de Gijón||0–0||Real Vigo Sporting|
April 4, 1920
|Athletic de Bilbao||4–1||Madrid FC|
Athletic de Bilbao qualified for the semifinals.
Real Vigo qualified for the semifinals.
April 11, 1920
|Athletic de Bilbao||2–1||Real Vigo Sporting|
FC Barcelona qualified for the final.
April 18, 1920
|Real Vigo Sporting||0–1||Athletic de Bilbao|
Athletic de Bilbao qualified for the final.
May 2, 1920
|FC Barcelona||2–0||Athletic Bilbao|
|Copa del Rey 1920 winners|