| Copa del Generalísimo | |
| Year: | 1951 |
| Other Titles: | 49th Copa del Rey |
| Country: |  Spain |
| Num Teams: | 14 |
| Defending Champions: | Atlético de Bilbao |
| Winners: | FC Barcelona (10th title) |
| Second: | Real Sociedad |
| Matches: | 25 |
| Goals: | 86 |
| Scoring Leader: | Telmo Zarra (8 goals) |
| Prev Season: | 1949–50 |
| Next Season: | 1952 |
The 1951 Copa del Generalísimo was the 49th staging of the Copa del Rey, the Spanish football cup competition.
The competition began on 29 April 1951 and concluded on 27 May 1951 with the final. FC Barcelona defeated Real Sociedad by 3–0 in the final.
|}Bye: Sporting de Gijón and Atlético Tetuán.
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See main article: 1951 Copa del Generalísimo Final.
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| Goalscorers | Goals | Team | |
|---|---|---|---|
| Telmo Zarra | 8 | Athletic Bilbao | |
 László Kubala | 6 | FC Barcelona | |
| Sabino Barinaga | 4 | Real Sociedad | |
| César Rodríguez | 4 | FC Barcelona | |
 Roque Olsen | 3 | Real Madrid | |
| Rafael Alsúa | 3 | Real Sociedad | |
| Emilio Ruiz Toro | 3 | Racing de Santander | |
| Lolo | 3 | Real Valladolid | |
| Mateo Nicolau | 3 | FC Barcelona | |
| José Juncosa | 3 | Atlético Madrid |