The 1965–66 Danish 1. division season was the ninth season of ice hockey in Denmark. Seven teams participated in the league, and KSF Copenhagen won the championship.
Regular season
edit| Club | GP | W | T | L | GF | GA | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1. | KSF Copenhagen | 12 | 8 | 3 | 1 | 73 | 36 | 19 |
| 2. | Gladsaxe SF | 12 | 8 | 2 | 2 | 88 | 39 | 18 |
| 3. | Esbjerg IK | 12 | 7 | 3 | 2 | 69 | 39 | 17 |
| 4. | Rungsted IK | 12 | 7 | 2 | 3 | 58 | 44 | 16 |
| 5. | Rødovre Mighty Bulls | 12 | 3 | 0 | 9 | 57 | 56 | 6 |
| 6. | Universitetets Studenter Gymnastik | 12 | 1 | 2 | 9 | 26 | 85 | 4 |
| 7. | Vojens IK | 12 | 1 | 2 | 9 | 37 | 109 | 4 |