3. deild karla () or D3 is the fourth tier basketball competition among clubs in Iceland. It is organized by the Icelandic Basketball Federation (). It consists of 8 teams and the season consists of a schedule of 14 games. The top four teams meet in a playoff for the victory in the 3. deild. The two finalists achieve promotion to 2. deild karla.
3. deild karla originated in 2015 and consists of 10 teams. On 13 March 2020, the 2019âÂÂ20 season was postponed due to the COVID-19 outbreak in Iceland. The day after, the Icelandic Basketball Federation canceled the rest of the season. The 2020âÂÂ21 season was initially postponed in October after another outbreak of COVID-19 in the country. In January 2021 it was announced that the season would start on 13 February but with Hamar-b having withdrawn from the league.