The 1989 2. divisjon was a Norwegian second-tier football league season.
[1] The second placed teams met the 10th position finisher in the 1. divisjon in a qualification round where the winner was promoted to Tippeligaen.
The bottom three teams inn both groups were relegated to the 3. divisjon.
The second-placed teams, Djerv 1919 and HamKam met Vålerengen in the promotion play-offs.
Vålerengen won the qualification round and remained in the Tippeligaen.