1991 Norwegian Football Cup
The 1991 Norwegian Football Cup was the 86th edition of the Norwegian Football Cup. The [1991 Norway|Norwegian Football Cup final|final] took place at Ullevaal Stadion in Oslo on 20 October 1991. Strømsgodset were won the Norwegian Cup after they defeated Rosenborg with the score 3–2. This was Strømsgodset's fourth Norwegian Cup title.
Calendar
Below are the dates for each round as given by the official schedule:| Round | Date | Number of fixtures | Clubs |
| First Round | 29–30 May 1991 | 64 | 128 → 64 |
| Second Round | 11–12 June 1991 | 32 | 64 → 32 |
| Third Round | 26 June 1991 | 16 | 32 → 16 |
| Fourth Round | 24 July 1991 | 9 | 16 → 8 |
| Quarter-finals | 14 August 1991 | 5 | 8 → 4 |
| Semi-finals | 14–15 September 1991 | 2 | 4 → 2 |
| Final | 20 October 1991 | 1 | 2 → 1 |
Fourth round
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Quarter-finals
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