1975 Norwegian First Division
| Season | 1975 | 
|---|---|
| Dates | 27 April – 19 October | 
| Champions | Viking 5th title  | 
| Relegated | Skeid Vålerengen Os  | 
| European Cup | Viking | 
| UEFA Cup | Brann Start  | 
| Matches played | 132 | 
| Goals scored | 336 (2.55 per match) | 
| Top goalscorer | Arne Dokken (18 goals)  | 
| Biggest home win | Viking 6–0 Fredrikstad (8 May 1975)  | 
| Biggest away win | Fredrikstad 2–6 Rosenborg (28 July 1975)  | 
| Highest scoring | Fredrikstad 2–6 Rosenborg (28 July 1975)  | 
| Longest winning run | Mjøndalen (6 games)  | 
| Longest unbeaten run | Brann (9 games)  | 
| Longest winless run | Os (22 games)  | 
| Longest losing run | Os (10 games)  | 
| Highest attendance | 16,516 Start 0–1 Viking (31 August 1975)  | 
| Lowest attendance | 1,183 Skeid 2–2 Molde (19 October 1975)  | 
| Average attendance | 6,772 17.8% | 
← 1974  1976 →   | |
The 1975 1. divisjon was the 31st completed season of top division football in Norway.