| Tournament details | |
|---|---|
| Country | Norway |
| Teams | 272 (overall) 128 (main competition) |
| Defending champions | Lillestrøm |
| Final positions | |
| Champions | Rosenborg (12th title) |
| Runner-up | Strømsgodset |
| Tournament statistics | |
| Matches played | 127 |
| Goals scored | 414 (3.26 per match) |
| Top goal scorer(s) | Mustafa Abdellaoue (8 goals) |
The 2018 Norwegian Football Cup was the 113th edition of the Norwegian annual knock-out football tournament. It began with qualification matches in March and April 2018. The first round was played from 17–19 April 2018 and the tournament concluded with the final on 2 December 2018.
Rosenborg won their twelfth Cup title. The victory would have earned them a place in the first qualifying round of the 2019–20 UEFA Europa League, but since the club already had qualified to the 2019–20 UEFA Champions League as winners of the 2018 Eliteserien, this berth was passed down to Haugesund, fourth-place finishers in the league.