| Norgesmesterskapet i fotball for herrer | |
|---|---|
| Tournament details | |
| Country |  Norway |
| Teams | 85 (main competition) |
| Defending champions | Vålerenga |
| Final positions | |
| Champions | Stabæk (1st title) |
| Runner-up | Rosenborg |
| Tournament statistics | |
| Top goal scorer(s) | Sigurd Rushfeldt (5) |
The 1998 Norwegian Football Cup was the 93rd edition of the Norwegian Football Cup and was won by Stabæk after defeating Rosenborg in the final at Ullevaal Stadion on 1 November.
Because of Norway's participation in the 1998 FIFA World Cup, the clubs playing in Tippeligaen entered the competition in the third round.