Final
First match
| Fredrikstad | 1–1 (a.e.t.) | Lyn |
|---|---|---|
Brynildsen  46' (pen.) | Report | Osnes 19' |
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Replay match
Second replay match
| Lyn | 4–0 | Fredrikstad |
|---|---|---|
| Sveinsson 17' Bråthen 25', 30', 35' | Report |
| Norgesmesterskapet i fotball for menn 1945 | |
|---|---|
| Tournament details | |
| Country | Norway |
| Teams | 128 (main competition) |
| Defending champions | Fredrikstad |
| Final positions | |
| Champions | Lyn (5th title) |
| Runners-up | Fredrikstad |
The 1945 Norwegian Football Cup was the 40th season of the Norwegian annual knockout football tournament. This was the first cup in five years, due to the Second World War. The tournament was open for all members of NFF, except those from Northern Norway. The final was contested by the defending champions Fredrikstad and the four-time former winners Lyn. It took two replays to decide a winner, and in the third final Lyn won 4–0 securing their fifth title and the first title in 34 years, having last won in 1911.
| Team 1 | Score | Team 2 |
|---|---|---|
| Birkebeineren | 5–2 | Kongsberg |
| Braatt | 1–3 | Nordlandet |
| Brann | 7–0 | Florvåg |
| Briskebyen | 2–3 | Kapp |
| Brodd | 3–3 (a.e.t.) | Viking |
| Djerv | 3–4 (a.e.t.) | Høydekameratene |
| Drøbak | 0–2 | Moss |
| Eidsvold IF | 1–7 | Skeid |
| Fram (Brumunddal) | 1–5 | Bøn |
| Fram (Larvik) | 3–1 (a.e.t.) | BFG |
| Fredensborg | 0–3 | Strong |
| Frigg | 4–1 | Asker |
| Geithus | 0–3 | Strømsgodset |
| Gjøvik-Lyn | 3–1 | Vardal |
| Gleng | 2–6 | Lisleby |
| Grane (Arendal) | 3–4 (a.e.t.) | Donn |
| Grane (Oslo) | 0–14 | Fredrikstad |
| Gresvik | 3–2 (a.e.t.) | Sparta |
| Grue | 1–3 | Haga |
| Hardy | 2–3 | Fjellkameratene |
| Jarl | 0–5 | Djerv 1919 |
| Jerv | 1–2 | Start |
| Jordal | 1–3 | Gjøa |
| Klepp | 5–3 | Mandalskameratene |
| Kristiansund | 4–0 | Molde |
| Kvik (Halden) | 4–2 | Kråkerøy |
| Lilleaker | 0–2 | Vålerengen |
| Lillestrøm | 7–2 | Bjørkelangen |
| Lyn | 4–0 | Lillestrøm/Fram |
| Lyn (Trondheim) | 2–4 | Falken (Trondheim) |
| Mjøndalen | 3–3 (a.e.t.) | Eiker |
| Moelven | 0–6 | Spartacus |
| National | 5–0 | Brage |
| Neset | 3–1 (a.e.t.) | Tryggkam |
| Nessegutten | 2–4 | Verdal |
| Nydalen | 6–1 | Sandvika |
| Odd | 5–0 | Rjukan |
| Pors | 2–1 (a.e.t.) | Skiens BK |
| Ranheim | 4–0 | Gå-På (Tynset) |
| Rapid | 4–2 | Falk |
| Raufoss | 3–1 (a.e.t.) | Jevnaker |
| Rollon | 2–5 | Træff |
| Rosenborg | 1–2 | Kvik (Trondheim) |
| Sandefjord BK | 3–2 (a.e.t.) | Larvik Turn |
| Sarpsborg | 12–1 | Kjelsås |
| Selbak | 3–2 | Stabæk |
| Skiens Grane | 1–0 | Tønsberg-Kameratene |
| Skiold | 2–0 | Storm |
| Slemmestad | 2–1 | Drammens BK |
| Snøgg | 1–1 (a.e.t.) | Urædd |
| Solberg | 2–1 | Drafn |
| Steinkjer | 0–3 | Ørn (Trondheim) |
| Torp | 6–0 | Sandaker |
| Trysilgutten | 1–2 | Hamar |
| Tønsberg Turn | 5–2 | Strømmen |
| Ulefoss | 1–3 | Borg |
| Vard | 2–0 | Stål |
| Vigør | 2–0 | Flekkefjord |
| Voss | 6–0 | Nymark |
| Wing | 2–0 | Løkken |
| Ørn (Horten) | 1–2 | Vikersund |
| Aalesund | 8–0 | Volda |
| Ålgård | 1–3 | Stavanger |
| Årstad | 5–1 | Falken (Høyanger) |
| Replay | ||
| Eiker | 0–1 | Mjøndalen |
| Urædd | 6–2 | Snøgg |
| Viking | 4–0 | Brodd |
| Team 1 | Score | Team 2 |
|---|---|---|
| Borg | 3–2 | Vigør |
| Bøn | 0–10 | Lyn |
| Djerv 1919 | 2–0 | Brann |
| Donn | 2–3 (a.e.t.) | Start |
| Falken (Trondheim) | 2–3 | Wing |
| Fjellkameratene | 1–4 | Voss |
| Fredrikstad | 7–0 | Solberg |
| Gjøa | 4–3 | Gjøvik-Lyn |
| Haga | 0–5 | Lillestrøm |
| Hamar | 2–6 | Nydalen |
| Høydekameratene | 1–3 | Årstad |
| Kapp | 3–4 (a.e.t.) | Frigg |
| Kvik (Trondheim) | 2–1 | Neset |
| Lisleby | 5–1 | Pors |
| Mjøndalen | 2–1 | Skiens Grane |
| Moss | 4–0 | Slemmestad |
| Nordlandet | 0–1 | Kristiansund |
| Odd | 0–1 | Fram (Larvik) |
| Sandefjord BK | 3–0 | Torp |
| Skeid | 5–2 | Gresvik |
| Spartacus | 0–8 | Raufoss |
| Stavanger | 3–1 | Vard |
| Strong | 1–1 (a.e.t.) | Skiold |
| Strømsgodset | 3–1 | Kvik (Halden) |
| Tønsberg Turn | 1–4 | Sarpsborg |
| Urædd | 1–2 | Birkebeineren |
| Verdal | 3–0 | National |
| Vikersund | 1–0 | Rapid |
| Viking | 2–1 | Klepp |
| Vålerengen | 2–1 (a.e.t.) | Selbak |
| Ørn (Trondheim) | 0–4 | Ranheim |
| Aalesund | 3–1 | Træff |
| Replay | ||
| Skiold | 4–1 | Strong |
| Team 1 | Score | Team 2 |
|---|---|---|
| 2 September 1945 | ||
| Kristiansund | 2–1 (a.e.t.) | Aalesund |
| Årstad | 1–0 | Voss |
| Birkebeineren | 0–3 | Strømsgodset |
| Lisleby | 2–0 | Borg |
| Stavanger | 3–1 | Djerv 1919 |
| Fram (Larvik) | 0–3 | Fredrikstad |
| Frigg | 1–3 | Mjøndalen |
| Raufoss | 1–1 (a.e.t.) | Gjøa |
| Kvik (Trondheim) | 1–2 | Wing |
| Lillestrøm | 1–0 | Vålerengen |
| Lyn | 5–0 | Sandefjord BK |
| Nydalen | 1–1 (a.e.t.) | Moss |
| Ranheim | 1–0 | Verdal |
| Sarpsborg | 3–1 | Vikersund |
| Skiold | 0–1 | Skeid |
| Start | 2–2 (a.e.t.) | Viking |
| Replay: 9 September 1945 | ||
| Gjøa | 6–3 | Raufoss |
| Moss | 1–1 (a.e.t.) | Nydalen |
| Viking | 3–1 | Start |
| 2nd replay: 13 September 1945 | ||
| Nydalen | 0–1 (a.e.t.) [a] | Moss |
| Team 1 | Score | Team 2 |
|---|---|---|
| 16 September 1945 | ||
| Årstad | 3–2 | Stavanger |
| Fredrikstad | 10–1 | Lillestrøm |
| Gjøa | 3–4 (a.e.t.) | Kristiansund |
| Viking | 0–6 | Lisleby |
| Mjøndalen | 0–1 | Lyn |
| Moss | 1–1 (a.e.t.) | Strømsgodset |
| Skeid | 7–1 | Ranheim |
| Wing | 2–6 | Sarpsborg |
| Replay: 19 September 1945 | ||
| Strømsgodset | 0–1 | Moss |
| Team 1 | Score | Team 2 |
|---|---|---|
| 23 September 1945 | ||
| Fredrikstad | 4–0 | Årstad |
| Lyn | 6–0 | Kristiansund |
| Lisleby | 3–0 | Moss |
| Sarpsborg | 4–3 | Skeid |
| Team 1 | Score | Team 2 |
|---|---|---|
| 30 September 1945 | ||
| Fredrikstad | 3–0 | Sarpsborg |
| Lyn | 6–1 | Lisleby |
| Fredrikstad | 1–1 (a.e.t.) | Lyn |
|---|---|---|
| Brynildsen 46' (pen.) | Report | Osnes 19' |
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| Lyn | 4–0 | Fredrikstad |
|---|---|---|
| Sveinsson 17' Bråthen 25', 30', 35' | Report |