| Season | 2009 |
|---|---|
| Dates | 5 April – 1 November |
| Champions | Haugesund |
| Promoted | Haugesund Hønefoss Kongsvinger |
| Relegated | HamKam Notodden Stavanger Skeid |
| Matches played | 240 |
| Goals scored | 735 (3.06 per match) |
| Top goalscorer | Thomas Sørum (24 goals) |
← 2008 2010 → | |
The 2009 1. divisjon (referred to as Adeccoligaen for sponsorship reasons) was a Norwegian second-tier football season. The season began play on 5 April 2009 and will end on 1 November 2009.
The club relegated from the Tippeligaen in 2008 was Ham-Kam. Sandnes Ulf and Hødd were relegated to the 2. divisjon in 2008 after finishing in fifteenth and sixteenth place respectively. Tromsdalen, Stavanger, Mjøndalen, and Skeid were promoted from the 2. divisjon in 2008.
At the end of the season, a two-legged promotion playoff will be played between the 3rd, 4th, and 5th placed teams in the 1. divisjon and the 14th placed team in the Tippeligaen.