| Copa del Rey | |
| Year: | 1981–82 |
| Other Titles: | 80th Copa del Rey |
| Country: |  Spain |
| Dates: | 30 August 1981 – 13 April 1982 |
| Num Teams: | 136 |
| Winners: | Real Madrid CF |
| Second: | Sporting de Gijón |
| Matches: | 266 |
| Goals: | 773 |
| Prev Season: | 1980–81 |
| Next Season: | 1982–83 |
The 1981–82 Copa del Rey was the 80th staging of the Spanish Cup, the annual domestic cup competition in the Spanish football. The tournament was attended by 136 teams from the main categories of Spaniard football.
The tournament began on 30 August 1981 and ended on 13 April 1982 with the final, held in Nuevo José Zorrilla Stadium, in Valladolid. This field was opened two months earlier and was baptized as Stadium of Pneumonia because it was always cold there.[1]
Real Madrid CF won their 15th title with a 2–1 victory over Sporting de Gijón, team that played their second consecutive final.
The defending champions, FC Barcelona, was defeated 1–0 (on aggregate score) by Atlético de Madrid in the round of 16.
| Round | Fixture | Clubs | Gain entry |
|---|---|---|---|
| First round | 65 | 136 → 71 | All Clubs participating gain entry |
| Second round | 34 | 71 → 37 | Atlético de Madrid, Real Sociedad (*) |
| Third round | 17 | 37 → 20 | |
| Fourth round | 4 | 20 → 16 | |
| Round of 16 | 8 | 16 → 8 | FC Barcelona, Real Madrid CF, Valencia CF (*) |
| Quarter-finals | 4 | 8 → 4 | |
| Semi-finals | 2 | 4 → 2 | |
| Final | 1 | 2 → 1 |
| 1ª División | 18 | |
| 2ª División | 20 | |
| 2ª División B | 26 | |
| 3ª División | 72 | |
| Total teams | 136 |
|}
|}
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See main article: 1982 Copa del Rey Final.