The 1968 Norwegian Football Cup was the 63rd season of the Norwegian annual knockout football tournament. The Final was held on 27 October 1968, between Lyn and Mjøndalen. Lyn won their eighth Norwegian Cup. Having won the league, Lyn qualified for the 1969–70 European Cup, with Mjøndalen qualifying for the 1969–70 European Cup Winners' Cup as runners-up.
First round
|colspan="3" style="background-color:#97DEFF"|Replay
Second round
|colspan="3" style="background-color:#97DEFF"|Replay
|colspan="3" style="background-color:#97DEFF"|2nd replay
|colspan="3" style="background-color:#97DEFF"|3rd replay
Third round
|colspan="3" style="background-color:#97DEFF"|30 June 1968
|colspan="3" style="background-color:#97DEFF"|7 July 1968
|colspan="3" style="background-color:#97DEFF"|Replay: 4 July 1968
|colspan="3" style="background-color:#97DEFF"|Replay: 7 July 1968
Fourth round
|colspan="3" style="background-color:#97DEFF"|4 August 1968
|colspan="3" style="background-color:#97DEFF"|Replay: 11 August 1968
Quarter-finals
|colspan="3" style="background-color:#97DEFF"|1 September 1968
Semi-finals
|colspan="3" style="background-color:#97DEFF"|29 September 1968
Final
Lyn's winning squad
Svein Bjørn Olsen Jan Rodvang Helge Østvold Andreas Morisbak Knut Kolle Knut Berg Karl Johan Johannessen Jan Berg Harald Berg Ola Dybwad-Olsen Jon Palmer Austnes Alf H. Braathen Trygve Christophersen Sveinung Aarnseth
References www.rsssf.no