The 2003 Norwegian Football Cup was the 98th edition of the Norwegian Football Cup. Rosenborg won their 9th Norwegian Championship title after defeating Bodø/Glimt in the final with the score 3–1. The final was played on Sunday 9 November at Ullevaal stadion in Oslo.

Bodø/Glimt reached the final after beating Verdal, Mo, Tromsdalen, Ørn-Horten, Aalesund and Tromsø.

Rosenborg reached the final after beating Buvik, Clausenengen, Lofoten, Lyn, Haugesund and Skeid.

Calendar Below are the dates for each round as given by the official schedule:

Round Date(s) Number of fixtures ClubsFirst Round 6–7 May 2003 64 128 → 64Second Round 21 May 2003 32 64 → 32Third Round 25–26 June 2003 16 32 → 16Fourth Round 6–7 August 2003 8 16 → 8Quarter-finals 27 August 2003 4 8 → 4Semi-finals 14 October 2003 2 4 → 2Final 9 November 2003 1 2 → 1

First round

|colspan="3" style="background-color:#97DEFF"|6 May 2003

|colspan="3" style="background-color:#97DEFF"|7 May 2003

Second round

|colspan="3" style="background-color:#97DEFF"|13 May 2003

|colspan="3" style="background-color:#97DEFF"|19 May 2003

|colspan="3" style="background-color:#97DEFF"|21 May 2003

|colspan="3" style="background-color:#97DEFF"|22 May 2003

|colspan="3" style="background-color:#97DEFF"|4 June 2003

Third round

|colspan="3" style="background-color:#97DEFF"|25 June 2003

|colspan="3" style="background-color:#97DEFF"|26 June 2003

Fourth round

Quarter-finals

Semi-finals

Final

References