1972 Icelandic Cup
The 1972 Icelandic Cup was the 13th edition of the National Football Cup.
It took place between 19 June 1972 and 12 November 1972, with the final played at Melavöllur in Reykjavík.
The Cup was important, as the winner qualified for the UEFA Cup Winners' Cup..
Clubs from the 1. Deild did not enter until the last 16, while clubs from lower divisions had already played 3 preliminary rounds. In case of a draw, the match was replayed at the ground of the other team.
ÍBV Vestmannaeyjar won their second Icelandic Cup, after winning the 1968 Icelandic Cup and beating 2. Deild club FH Hafnarfjörður in the final.
Last 16
| Team 1 | Team 2 | Result |
| ÍB Isafjörður | FH Hafnarfjörður | 2 - 3 |
| þrottur Norðfjörður | Keflavík ÍF | 0 - 2 |
| Víkingur Reykjavík | Ungmennafélag Njarðvíkur | 5 - 1 |
| KR Reykjavík | Fram Reykjavík | 2 - 1 |
| Breiðablik UBK | Haukar | 0 - 1 |
| ÍB Akureyri | ÍBV Vestmannaeyjar | 0 - 3 |
| Knattspyrnufélagið Þróttur | ÍA Akranes | 1 - 3 |
| Armann Reykjavík | Valur Reykjavík | 0 - 1 |
Final
- ÍBV Vestmannaeyjar won their second Icelandic Cup and qualified for the 1973–74 European Cup Winners' Cup.