2017–18 Basketligaen

The 2017–18 Basketligaen was the 43rd season of the highest professional basketball tier in Denmark. The season started on 20 September 2017 and ended on 7 May 2018. Bakken Bears was the defending champion, and won the championship again after beating Horsens IC in the play-off finals.

Competition format
In the regular season, teams played against each other four times home-and-away in double a round-robin format. The eight teams advanced to the playoffs.

Teams
Wolfpack returned to the Basketligan after a two-year absence. They replaced SISU, which was the last qualified in the previous season and therefore relegated.

Playoffs
The playoffs were played between the eight teams of the competition, with a best-of-five series in a 1-1-1-1-1 format. The seeded team played games 1, 3 and 5 at home. The Finals will be played in a best-of-seven series and the bronze medal series as a single game. The playoffs began on 13 March and ended 7 May 2018.

Quarterfinals
The quarter-finals began on 18 March and ended 29 March 2018.


 * }

Semifinals

 * }

Finals

 * }