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]