The 1965 Icelandic Cup was the sixth edition of the National Football Cup.
It took place between 31 July 1965 and 31 October 1965, with the final played at Melavöllur in Reykjavik. The cup was important, as winners qualified for the UEFA Cup Winners' Cup (if a club won both the league and the cup, the defeated finalists would take their place in the Cup Winners' Cup). Teams from the Úrvalsdeild karla (1st division) did not enter until the quarter-finals. In prior rounds, teams from the 2. Deild (2nd division), as well as reserve teams, played in one-legged matches. In case of a draw, the match was replayed.
For the first time in 5 years (since the creation of the tournament), KR Reykjavik were eliminated when they entered, in the quarter-finals. Valur Reykjavik won the Cup, beating IA Akranes 5 - 3 in the final.
| Team 1 | Team 2 | Result |
|---|---|---|
| þor Vestmannaeyjar | ÍBK Keflavík B | 3 - 2 |
| FH Hafnarfjörður | Haukar Hafnarfjörður | 3 - 2 |
| IA Akranes B | Fram Reykjavik B | 0 - 4 |
| KR Reykjavik B | ÍBK Keflavík C | forfeit |
| þrottur Reykjavik B | Týr Vestmannaeyjar | 0 - 8 |
| þrottur Reykjavik | Vikingur Reykjavik | 4 - 1 |
| Team 1 | Team 2 | Result |
|---|---|---|
| Valur Reykjavik B | Breiðablik Kopavogur | 3 - 1 |
| Týr Vestmannaeyjar | þrottur Reykjavik | 1 - 3 |
| KR Reykjavik B | þor Vestmannaeyjar | 2 - 1 |
| Fram Reykjavik B | FH Hafnarfjörður B | 1 - 2 |
| Team 1 | Team 2 | Result |
|---|---|---|
| KR Reykjavik B | þrottur Reykjavik | 6 - 1 |
| Valur Reykjavik B | FH Hafnarfjörður | 3 - 4 |
| Team 1 | Team 2 | Result |
|---|---|---|
| ÍBA Akureyri (D1) | KR Reykjavik (D1) | 2 - 0 |
| IA Akranes (D1) | FH Hafnarfjörður | 3 - 0 |
| ÍBK Keflavík (D1) | KR Reykjavik B | 2 - 1 |
| Fram Reykjavik (D1) | Valur Reykjavik (D1) | 0 - 1 |
| Team 1 | Team 2 | Result |
|---|---|---|
| Valur Reykjavik | ÍBA Akureyri | 3 - 2 |
| IA Akranes | ÍBK Keflavík | 2 - 0 (replayed after 1–1 draw) |
| Valur Reykjavik | 5–3 | IA Akranes |
|---|---|---|
Bergsveinn Alfonsson  , Bergsteinn Magnusson Ingvar Elisson Hermann Gunnarsson |
(Report) | Gudjon Gudmundsson Skuli Hakonarsson Björn Larusson |
