| Season | 2015 |
|---|---|
| Dates | 6 April – 1 November |
| Champions | Sogndal |
| Promoted | Sogndal Brann |
| Relegated | Follo Nest-Sotra Bærum Hønefoss |
| Matches played | 240 |
| Goals scored | 702 (2.93 per match) |
| Top goalscorer | Pontus Engblom (17 goals) Robert Stene (17 goals) |
| Biggest home win | Sandnes Ulf 6–1 Fredrikstad |
| Biggest away win | Bærum 0–5 Sogndal |
| Highest scoring | Sandnes Ulf 6–1 Fredrikstad Bærum 5–2 Nest-Sotra |
| Longest winning run | 7 games Sogndal |
| Longest unbeaten run | 14 games Brann |
| Highest attendance | 17,284 Brann 2–2 Nest-Sotra (16 May 2015) |
| Average attendance | 1,998 |
← 2014 2016 → | |
The 2015 1. divisjon (referred to as the OBOS-ligaen for sponsorship reasons) was a Norwegian second-tier football league season. The league was contested by 16 teams, and the top two teams were promoted to Tippeligaen, while the teams placed from third to sixth place played a promotion-playoff against the 14th-placed team in Tippeligaen to win promotion. The bottom four teams were relegated to the 2. divisjon.[1]
The first round of the season was played on 6 April 2015 and the season ended with the last round on 1 November 2015. The playoff-tournament was played between 7 and 21 November 2015.[2]
An agreement with Oslo's housing cooperative OBOS was signed on 15 January 2015, branding the league as OBOS-ligaen until 2021.[3]