The 1971 Norwegian Football Cup was the 66th edition of the Norwegian annual knockout football tournament. The Cup was won by Rosenborg after beating Fredrikstad in the cup final with the score 4–1. This was Rosenborg's third Norwegian Cup title.
First round
|colspan="3" style="background-color:#97DEFF"|3 June 1971
|colspan="3" style="background-color:#97DEFF"|4 June 1971
|colspan="3" style="background-color:#97DEFF"|5 June 1971
|colspan="3" style="background-color:#97DEFF"|6 June 1971
|colspan="3" style="background-color:#97DEFF"|Replay: 16 June 1971
Second round
|colspan="3" style="background-color:#97DEFF"|20 June 1971
|colspan="3" style="background-color:#97DEFF"|24 June 1971
|colspan="3" style="background-color:#97DEFF"|25 June 1971
|colspan="3" style="background-color:#97DEFF"|Replay: 24 June 1971
|colspan="3" style="background-color:#97DEFF"|Replay: 27 June 1971
Third round
|colspan="3" style="background-color:#97DEFF"|25 July 1971
|colspan="3" style="background-color:#97DEFF"|28 July 1971
|colspan="3" style="background-color:#97DEFF"|1 August 1971
|colspan="3" style="background-color:#97DEFF"|Replay: 5 August 1971
Fourth round
|colspan="3" style="background-color:#97DEFF"|15 August 1971
Quarter-finals
|colspan="3" style="background-color:#97DEFF"|29 August 1971
|colspan="3" style="background-color:#97DEFF"|Replay: 2 September 1971
Semi-finals
Final
References http://www.rsssf.no