The 1971 Norwegian Football Cup was the 66th edition of the Norwegian annual knockout football tournament. The Cup was won by Rosenborg after beating Fredrikstad in the cup final with the score 4–1. This was Rosenborg's third Norwegian Cup title.
| Norgesmesterskapet i fotball for menn 1971 | |
|---|---|
| Tournament details | |
| Country |  Norway |
| Teams | 128 (main competition) |
| Defending champions | Strømsgodset |
| Final positions | |
| Champions | Rosenborg (3rd title) |
| Runner-up | Fredrikstad |
First round edit
Second round edit
| Team 1 | Score | Team 2 |
|---|---|---|
| Aurskog | 0–1 | Lillestrøm |
| Bodø/Glimt | 6–1 | Skarp |
| Brann | 5–0 | Os |
| Bryne | 6–1 | Bjarg |
| Donn | 3–2 | Fram (Larvik) |
| Egersund | 0–9 | Viking |
| Eik | 0–3 | Lyn |
| Falken | 4–1 | Clausenengen |
| Frigg | 2–3 | Snøgg |
| Gjøvik-Lyn | 0–3 | Fredrikstad |
| HamKam | 5–0 | Sogndal |
| Langevåg | 3–3 (a.e.t.) | Hødd |
| Larvik Turn | 1–0 | Skeid |
| Mjølner | 4–0 | Polarstjernen |
| Mo | 1–2 | Neset |
| Molde | 1–0 | Gossen |
| Pors | 4–2 (a.e.t.) | Stag |
| Raufoss | 3–0 | Ready |
| Rosenborg | 5–1 | Kvik (Trondheim) |
| Røros | 3–1 (a.e.t.) | Steinkjer |
| Sandefjord BK | 1–5 | Mjøndalen |
| Sarpsborg | 3–1 | Grue |
| Skarbøvik | 0–2 | Aalesund |
| Skiold | 2–1 | Lisleby |
| Stabæk | 0–0 (a.e.t.) | Vålerengen |
| Start | 1–4 | Vidar |
| Ull/Kisa | 0–1 | Eidsvold Turn |
| Vard | 5–1 | Florvåg |
| Vardal | 2–8 | Strømsgodset |
| Varegg | 3–1 | Haugar |
| Verdal | 0–0 (a.e.t.) | Nessegutten |
| Østsiden | 1–0 | Ørn |
| Replay | ||
| Hødd | 4–2 | Langevåg |
| Nessegutten | 2–0 | Verdal |
| Vålerengen | 2–0 | Stabæk |
Third round edit
| Team 1 | Score | Team 2 |
|---|---|---|
| 25 July 1971 | ||
| Fredrikstad | 4–0 | Røros |
| Vålerengen | 3–0 | Brann |
| Lillestrøm | 1–4 | HamKam |
| Mjøndalen | 2–0 | Skiold |
| Strømsgodset | 5–0 | Donn |
| Snøgg | 1–5 | Sarpsborg |
| Hødd | 2–3 | Varegg |
| 28 July 1971 | ||
| Lyn | 4–0 | Bryne |
| Viking | 3–1 | Larvik Turn |
| Rosenborg | 1–0 | Falken |
| 1 August 1971 | ||
| Eidsvold Turn | 2–4 | Pors |
| Raufoss | 0–1 | Østsiden |
| Vidar | 1–2 | Vard |
| Aalesund | 1–0 | Bodø/Glimt |
| Neset | 2–2 (a.e.t.) | Molde |
| Nessegutten | 0–5 | Mjølner |
| Replay: 5 August 1971 | ||
| Molde | 1–0 | Neset |
Fourth round edit
| Team 1 | Score | Team 2 |
|---|---|---|
| 15 August 1971 | ||
| Sarpsborg | 4–0 | Vålerengen |
| Østsiden | 0–2 | Strømsgodset |
| HamKam | 2–0 | Mjøndalen |
| Pors | 0–3 | Fredrikstad |
| Vard | 1–2 | Viking |
| Varegg | 1–0 | Lyn |
| Mjølner | 2–1 | Aalesund |
| Molde | 0–1 | Rosenborg |
Quarter-finals edit
| Team 1 | Score | Team 2 |
|---|---|---|
| 29 August 1971 | ||
| Fredrikstad | 4–3 | Viking |
| Strømsgodset | 1–2 | HamKam |
| Rosenborg | 0–0 (a.e.t.) | Varegg |
| Mjølner | 0–1 | Sarpsborg |
| Replay: 2 September 1971 | ||
| Varegg | 0–1 | Rosenborg |
Semi-finals edit
| Team 1 | Score | Team 2 |
|---|---|---|
| 3 October 1971 | ||
| HamKam | 0–5 | Rosenborg |
| Sarpsborg | 0–2 | Fredrikstad |
Final edit
| Rosenborg | 4–1 | Fredrikstad |
|---|---|---|
Christiansen  14'Hanssen 57'Wirkola 61'Mørkved 85' |
Report | Johansen 80' (pen.) |