| Tourney Name: | Bikarkeppni Karla |
| Year: | 2018–2019 |
| City: | Reykjavík |
| Country: | Iceland |
| Arena: | Laugardalshöll |
| Dates: | 13–16 February 2019 |
| Champion: | Stjarnan |
| Second: | Njarðvík |
| Semifinalists: | KR, ÍR |
| Mvp: |  Brandon Rozzell |
| Prevseason: | 2017–18 |
| Nextseason: | 2019–20 |
The 2018–2019 Bikarkeppni karla, named Geysisbikarinn for sponsorship reasons, was the 53rd edition of the Icelandic Men's Basketball Cup, won by Stjarnan against Njarðvík.[1] The competition was managed by the Icelandic Basketball Federation and the final four was held in Reykjavík, in the Laugardalshöll in February 2019, and was broadcast live on RÚV.[2] Brandon Rozzell was named the Cup Finals MVP after turning in 30 points and 4 assists.[3]
Twenty-nine teams signed up for the Cup tournament.[4]