The –Ú2020–21 Úrvalsdeild karla was the 70th season of the Úrvalsdeild karla, the top tier men's basketball league in Iceland. The season started on 1 October 2020 and ended on 25 June 2021. Þór Þorlákshöfn won its first title by defeating Keflavík 3–1 in the Finals.
Competition format
The participating teams first played a conventional round-robin schedule with every team playing each opponent once home and once away for a total of 22 games. The top eight teams qualified for the championship playoffs whilst the two last qualified were relegated to Division 1.
Teams
Managerial changes
Regular season
Standings
Results
Playoffs
The playoffs are played between the eight first qualified teams with a 1-1-1-1-1 format, playing seeded teams games 1, 3 and 5 at home.