The 1980 Norwegian Football Cup was the 75th edition of the Norwegian annual knockout football tournament. The Cup was won by Vålerengen after beating Lillestrøm in the cup final with the score 4–1. This was Vålerengen's first Norwegian Cup title.
First round
|colspan="3" style="background-color:#97DEFF"|27 May 1980
|colspan="3" style="background-color:#97DEFF"|28 May 1980
|colspan="3" style="background-color:#97DEFF"|29 May 1980
|colspan="3" style="background-color:#97DEFF"|3 June 1980
|colspan="3" style="background-color:#97DEFF"|4 June 1980
|colspan="3" style="background-color:#97DEFF"|5 June 1980
|colspan="3" style="background-color:#97DEFF"|11 June 1980
|colspan="3" style="background-color:#97DEFF"|12 June 1980
|colspan="3" style="background-color:#97DEFF"|Replay: 4 June 1980
|colspan="3" style="background-color:#97DEFF"|Replay: 5 June 1980
|colspan="3" style="background-color:#97DEFF"|Replay: 11 June 1980
Second round
|colspan="3" style="background-color:#97DEFF"|17 June 1980
|colspan="3" style="background-color:#97DEFF"|18 June 1980
|colspan="3" style="background-color:#97DEFF"|19 June 1980
|colspan="3" style="background-color:#97DEFF"|Replay: 25 June 1980
Third round
|colspan="3" style="background-color:#97DEFF"|3 July 1980
|colspan="3" style="background-color:#97DEFF"|4 July 1980
|colspan="3" style="background-color:#97DEFF"|5 July 1980
|colspan="3" style="background-color:#97DEFF"|6 July 1980
Fourth round
Quarter-finals
Semi-finals
Replay
Final
References http://www.rsssf.no