The 1964–65 Nationalliga A season was the 27th season of the Nationalliga A, the top level of ice hockey in Switzerland. 10 teams participated in the league, and SC Bern won the championship.
| Pl. | Team | GP | W | T | L | GF–GA | Pts. | |
|---|---|---|---|---|---|---|---|---|
| 1. | SC Bern | 18 | 14 | 3 | 1 | 95:49 | 31 | |
| 2. | HC Villars | 18 | 13 | 1 | 4 | 82:32 | 27 | |
| 3. | SC Langnau | 18 | 11 | 1 | 6 | 75:55 | 23 | |
| 4. | EHC Kloten | 18 | 11 | 0 | 7 | 85:91 | 22 | |
| 5. | HC Servette Genève | 18 | 9 | 1 | 8 | 92:72 | 19 | |
| 6. | Grasshopper-Club | 18 | 7 | 3 | 8 | 71:63 | 17 | |
| 7. | EHC Visp | 18 | 7 | 1 | 10 | 71:90 | 15 | |
| 8. | HC Davos | 18 | 5 | 2 | 11 | 58:87 | 12 | |
| 9. | Zürcher SC | 18 | 5 | 1 | 12 | 80:90 | 11 | |
| 10. | Young Sprinters Neuchâtel | 18 | 1 | 1 | 16 | 57:137 | 3 |