| Copa del Generalísimo | |
| Year: | 1965–66 |
| Other Titles: | 64th Copa del Rey |
| Country: |  Spain |
| Num Teams: | 48 |
| Winners: | Real Zaragoza (2nd title) |
| Second: | Club Atlético de Bilbao |
| Matches: | 99 |
| Prev Season: | 1964–65 |
| Next Season: | 1966–67 |
The 1965–66 Copa del Generalísimo was the 64th staging of the Spanish Cup. The competition began on 24 October 1965 and ended on 29 May 1966 with the final.
|}
|}
|}
|}
|}
|}
|}
|}
See main article: 1966 Copa del Generalísimo Final.
|}