The 1986 Norwegian Football Cup was the 81st edition of the Norwegian annual knockout football tournament. The Cup was won by Tromsø after they beat Lillestrøm in the cup final with the score 4âÂÂ1. This was Tromsø's first Norwegian Cup title.
The penalty shoot-outs, instead of replays in the second and third round were introduced because a strike by municipality stadium officials was postponed many first round matches.
|colspan="3" style="background-color:#97DEFF"|28 May 1986
|- |colspan="3" style="background-color:#97DEFF"|3 June 1986
|- |colspan="3" style="background-color:#97DEFF"|9 June 1986
|- |colspan="3" style="background-color:#97DEFF"|10 June 1986
|- |colspan="3" style="background-color:#97DEFF"|11 June 1986
|- |colspan="3" style="background-color:#97DEFF"|12 June 1986
|- |colspan="3" style="background-color:#97DEFF"|Replay: 4 June 1986
|- |colspan="3" style="background-color:#97DEFF"|Replay: 11 June 1986
|- |colspan="3" style="background-color:#97DEFF"|Replay: 17 June 1986
|- |colspan="3" style="background-color:#97DEFF"|Replay: 18 June 1986
|colspan="3" style="background-color:#97DEFF"|16 June 1986
|- |colspan="3" style="background-color:#97DEFF"|18 June 1986
|- |colspan="3" style="background-color:#97DEFF"|23 June 1986
|- |colspan="3" style="background-color:#97DEFF"|24 June 1986
|- |colspan="3" style="background-color:#97DEFF"|25 June 1986
|colspan="3" style="background-color:#97DEFF"|1 July 1986
|- |colspan="3" style="background-color:#97DEFF"|2 July 1986