The 1973 Norwegian Football Cup was the 68th edition of the Norwegian annual knockout football tournament. The Cup was won by Strømsgodset after beating Rosenborg in the cup final with the score 1–0. This was Strømsgodset's third Norwegian Cup title.
First round
|colspan="3" style="background-color:#97DEFF"|31 May 1973
|colspan="3" style="background-color:#97DEFF"|3 June 1973
|colspan="3" style="background-color:#97DEFF"|5 June 1973
|colspan="3" style="background-color:#97DEFF"|Replay: 7 June 1973
|colspan="3" style="background-color:#97DEFF"|2nd replay: 14 June 1973
Second round
|colspan="3" style="background-color:#97DEFF"|14 June 1973
|colspan="3" style="background-color:#97DEFF"|20 June 1973
|colspan="3" style="background-color:#97DEFF"|Replay: 20 June 1973
Third round
|colspan="3" style="background-color:#97DEFF"|27 June 1973
|colspan="3" style="background-color:#97DEFF"|28 June 1973
|colspan="3" style="background-color:#97DEFF"|29 June 1973
|colspan="3" style="background-color:#97DEFF"|1 July 1973
|colspan="3" style="background-color:#97DEFF"|4 July 1973
|colspan="3" style="background-color:#97DEFF"|Replay: 4 July 1973
Fourth round
|colspan="3" style="background-color:#97DEFF"|19 August 1973
Quarter-finals
Semi-finals
Final
Strømsgodset's winning squad: Inge Thun, Per Rune Wøllner, Johnny Vidar Pedersen, Tor Alsaker-Nøstdahl, Svein Dahl Andersen, Odd Arild Amundsen, Finn Aksel Olsen, Bjørn Odmar Andersen, Thorodd Presberg, Steinar Pettersen, Ingar Pettersen, Bjørn Erik Halvorsen, Helge Widemann Karlsen and Runar Larsen.
References http://www.rsssf.no