| Competition: | 1. divisjon |
| Season: | 2013 |
| Dates: | 6 April – 3 November |
| Winners: | Bodø/Glimt |
| Promoted: | Bodø/Glimt Stabæk |
| Relegated: | Vard Haugesund Kongsvinger Follo Elverum |
| Matches: | 240 |
| Total Goals: | 720 |
| League Topscorer: | Jo Sondre Aas (18 goals)[1] |
| Biggest Home Win: | Bodø/Glimt 8–0 Kongsvinger[2] |
| Biggest Away Win: | Elverum 0–5 Follo |
| Highest Scoring: | Bryne 3–5 Vard Haugesund |
| Longest Wins: | 12 games Bodø/Glimt[3] |
| Longest Unbeaten: | 17 games Bodø/Glimt |
| Longest Winless: | 11 games Elverum |
| Longest Losses: | 6 games Follo |
| Highest Attendance: | 5,617 Sandefjord 2–2 Elverum (9 August 2013)[4] |
| Lowest Attendance: | 153 Vard Haugesund 2–0 Ranheim (1 September 2013) |
| Prevseason: | 2012 |
| Nextseason: | 2014 |
The 2013 1. divisjon (referred to as Adeccoligaen for sponsorship reasons) was a Norwegian second-tier football league season. The season began on 6 April 2013 and was concluded on 3 November 2013.[5] The league was contested by 16 teams. The top two teams were promoted to the 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.
From the 2012 1. divisjon, Start and Sarpsborg 08 won promotion to Tippeligaen,[6] while Stabæk and Fredrikstad were relegated to the First Division.[7]
Tromsdalen, Bærum, Notodden and Alta were relegated from the 2012 1. divisjon, while Elverum, Kristiansund, Vard Haugesund and Follo were promoted from the 2012 2. divisjon.
At the end of the season Bodø/Glimt and Stabæk won promotion to the 2014 Tippeligaen, while Vard Haugesund, Kongsvinger Elverum and Follo was relegated to the 2. divisjon.
| Team | Location | Arena | Capacity | Manager |
|---|---|---|---|---|
| Bodø/Glimt | Bodø | Aspmyra Stadion | 7,354 | Jan Halvor Halvorsen |
| Bryne | Bryne | Bryne Stadion | 10,000 | Gaute Larsen |
| Elverum | Elverum | Sentralidrettsplassen | 2,000 | Kevin Knappen |
| Follo | Ski | Ski Stadion | 2,500 | Hans Erik Eriksen |
| Fredrikstad | Fredrikstad | Fredrikstad Stadion | 12,560 | Lars Bakkerud |
| HamKam | Hamar | Briskeby gressbane | 10,200 | Vegard Skogheim |
| Hødd | Ulsteinvik | Høddvoll Stadion | 3,120 | Lars Arne Nilsen |
| Kristiansund | Kristiansund | Atlanten stadion | 4,000 | Geir Bakke |
| Kongsvinger | Kongsvinger | Gjemselund Stadion | 5,202 | Stian Aasen |
| Mjøndalen | Mjøndalen | Mjøndalen Stadion | 2,100 | Vegard Hansen |
| Ranheim | Trondheim | DNB Arena | 2,000 | Trond Nordsteien |
| Sandefjord | Sandefjord | Komplett.no Arena | 9,000 | Arne Sandstø |
| Stabæk | Bærum | Nadderud Stadion | 7,000 | Petter Belsvik |
| Strømmen | Strømmen | Strømmen Stadion | 1,800 | Erland Johnsen |
| Ull/Kisa | Jessheim | UKI Arena | 3,000 | Roar Johansen |
| Vard Haugesund | Haugesund | Haugesund Stadion | 8,800 | Flemming Christensen |
| Rank | Player | Club | Goals | Games | Average |
|---|---|---|---|---|---|
| 1 |  Jo Sondre Aas | Ranheim | 18 | 29 | 0.62 |
| 2 | Ibba Laajab | Bodø/Glimt | 17 | 26 | 0.65 |
| Aram Khalili | Bryne | 17 | 29 | 0.59 | |
| Mads Stokkelien | Stabæk | 17 | 30 | 0.57 | |
| 5 | Oddbjørn Skartun | Bryne | 16 | 30 | 0.53 |
| 6 | Pål Alexander Kirkevold | Mjøndalen | 14 | 25 | 0.56 |
| Ole Kristian Langås | Ullensaker/Kisa | 14 | 30 | 0.47 | |
| 8 |  Sanel Kapidzic | Vard Haugesund | 13 | 27 | 0.48 |
| 9 | Kent Håvard Eriksen | Elverum | 12 | 26 | 0.46 |
 Steevan Dos Santos | Ullensaker/Kisa | 12 | 27 | 0.44 | |
 Papa Alioune Ndiaye | Bodø/Glimt | 12 | 27 | 0.44 | |
| Robert Stene | Fredrikstad | 12 | 29 | 0.41 | |
| 13 | Jean Alassane Mendy | Kristiansund | 11 | 24 | 0.46 |
| 14 | Fitim Azemi | Follo | 10 | 29 | 0.34 |
| Alexander Ruud Tveter | Follo | 10 | 30 | 0.33 | |
| 16 | Jim Johansen | Bodø/Glimt | 9 | 27 | 0.33 |
| Martin Brekke | Elverum | 9 | 28 | 0.32 | |
| Magnus Myklebust | Kongsvinger | 9 | 29 | 0.31 | |
| Emil Dahle | HamKam | 9 | 29 | 0.31 |
Source:[8]