The 1991 1. divisjon, Norway's second-tier football league, began play on 28 April 1991 and ended on 6 October 1991. The league was contested by 24 teams, divided in two groups and the winner of each group won promotion to Tippeligaen, while the runners-up played a promotion-playoff against the 10th placed team in the 1991 Tippeligaen. The bottom three teams were relegated to the 2. divisjon.
Mjøndalen and Ham-Kam won promotion to Tippeligaen, while Kristiansund, Frigg, Surnadal, Mjølner, Råde and Sandefjord was relegated to the 2. divisjon.
Tables Group A
Group B
Promotion play-offs Results Strindheim – Bryne 0–2 Brann – Strindheim 1–0 Bryne – Brann 0–1
Brann won the qualification round and was promoted to the 1992 Tippeligaen.
Play-off table
Top scorers Group A and B GoalscorersTeamGoals Ole Petter SkonnordElverum Arve SvorkmoHamKam Ståle SolbakkenHamKam Per Ivar FornesMjøndalen Geir HasundHødd Ståle KillieMjølner Thor Helge FagernesEik-Tønsberg Stein Arne IngelstadHamKam Erik NymoenFrigg Terje PedersenMoss Rolf BredalDrøbak/Frogn Are ChristensenVålerengen Stig Otto JørgensenTromsdalen Per Terje MarkussenMjøndalen Sander SolbergFredrikstad Erling YtterlandHamKam Tom Freddy AuneFredrikstad Tommy HansenMjøndalen Morten HanssenFredrikstad Mons Ivar MjeldeBryne Kai Birger MyroldAalesund Arve SundbyEik-Tønsberg
See also 1991 Tippeligaen 1991 2. divisjon
References