The 2005 Norwegian Football Cup was the 100th edition of the Norwegian Football Cup. The tournament started on 7 May 2005 and was contested by 128 teams, going through 7 rounds before a winner could be declared. The final match was played on 6 November at Ullevaal stadion in Oslo. Molde won their 2nd Norwegian Championship title after defeating Lillestrøm in the final with the score 4–2 after extra time.

The clubs from Tippeligaen all made it to the third round (round of 32) without problems. Two surprises came in the third round, as Lyn and Tromsø lost to Hønefoss and Alta respectively. Alta's inclusion into the fourth round (round of 16) marked the longest a club from Finnmark had ever come in the Norwegian men's football cup. Alta lost to Odd Grenland in the fourth round, while Hønefoss continued to surprise, eventually making it to the semi-finals before being knocked out by Molde.

Molde won the cup by defeating Lillestrøm 4–2 in the final match after extra time.

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

Round Date(s) Number of fixtures ClubsFirst Round 10–11 May 2005 64 128 → 64Second Round 18–19 May 2005 32 64 → 32Third Round 15 June 2005 16 32 → 16Fourth Round 29–30 June 2005 8 16 → 8Quarter-finals 20–21 August 2005 4 8 → 4Semi-finals 21–22 September 2005 2 4 → 2Final 6 November 2005 1 2 → 1

First round

|colspan="3" style="background-color:#97DEFF"|7 May 2005

|colspan="3" style="background-color:#97DEFF"|10 May 2005

|colspan="3" style="background-color:#97DEFF"|11 May 2005

Second round

|colspan="3" style="background-color:#97DEFF"|18 May 2005

|colspan="3" style="background-color:#97DEFF"|19 May 2005

Third round

|colspan="3" style="background-color:#97DEFF"|15 June 2005

|colspan="3" style="background-color:#97DEFF"|16 June 2005

|colspan="3" style="background-color:#97DEFF"|22 June 2005

Fourth round

Quarter-finals

Semi-finals

Final

References