| Competition: | 1. divisjon |
| Season: | 1964 |
| Winners: | Lyn 1st title |
| Relegated: | Brann Raufoss |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Lyn (both 1964–65 and 1965–66) |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Rosenborg |
| Matches: | 90 |
| Total Goals: | 257 |
| League Topscorer: | Ole Stavrum (18 goals) |
| Biggest Home Win: | (27 September 1964) |
| Biggest Away Win: | (8 August 1964) |
| Highest Scoring: | (27 September 1964) |
| Longest Wins: | Lyn (6 games) |
| Longest Unbeaten: | Lyn (11 games) |
| Longest Winless: | Skeid (8 games) |
| Longest Losses: | Raufoss (6 games) |
| Highest Attendance: | 16,500 (2 September 1964) |
| Lowest Attendance: | 1,786 (19 June 1964) |
| Average Attendance: | 6,186 21.4% |
| Dates: | 24 April – 4 October |
| Prevseason: | 1963 |
| Nextseason: | 1965 |
The 1964 1. divisjon was the 20th completed season of top division football in Norway.
It was contested by 10 teams, and FC Lyn Oslo won their first championship title. At the time, Lyn Oslo's 26 points were a record for the most points in one season. Brann and Raufoss were relegated to the 2. divisjon.
This season, two spots in the European Cup were awarded. Lyn lead the league after 9 rounds and qualified for the 1964–65 European Cup. At the end of the season, Lyn won the league, their first league title, and qualified also for the 1965–66 European Cup. This was the last Norwegian top flight season, the leader after half a season were awarded a European Cup spot.
Note: Table lists in alphabetical order.
| Team | Location | ||
|---|---|---|---|
| Brann | 15 | Bergen | |
| Fredrikstad | 19 | Fredrikstad | |
| Frigg | 9 | Oslo | |
| Lyn | 12 | Oslo | |
| Raufoss | 7 | Raufoss | |
| Sandefjord BK | 17 | Sandefjord | |
| Sarpsborg FK | 14 | Sarpsborg | |
| Skeid | 18 | Oslo | |
| Vålerengen | 15 | Oslo | |
| Viking | 19 | Stavanger |
Ole Stavrum, Lyn – 18 goals