The 1954–55 Nationalliga A season was the 17th season of the Nationalliga A, the top level of ice hockey in Switzerland. Eight teams participated in the league, and EHC Arosa won the championship.
Regular season
edit| Pl. | Team | GP | W | T | L | GF–GA | Pts. |
|---|---|---|---|---|---|---|---|
| 1. | EHC Arosa | 14 | 11 | 0 | 3 | 110:72 | 22 |
| 2. | Grasshopper-Club | 14 | 9 | 3 | 2 | 79:42 | 21 |
| 3. | Young Sprinters Neuchâtel | 14 | 10 | 1 | 2 | 83:54 | 21 |
| 4. | HC Davos | 14 | 8 | 0 | 6 | 74:54 | 16 |
| 5. | Zürcher SC | 14 | 6 | 2 | 6 | 89:84 | 14 |
| 6. | HC Ambrì-Piotta | 14 | 5 | 1 | 8 | 65:77 | 11 |
| 7. | SC Bern | 14 | 3 | 1 | 10 | 87:96 | 7 |
| 8. | EHC St. Moritz | 14 | 0 | 0 | 14 | 40:148 | 0 |