The 1946–47 Nationalliga A season was the ninth season of the Nationalliga A, the top level of ice hockey in Switzerland. Eight teams participated in the league, and HC Davos won the championship.
Regular season
Group 1
| Pl. | Team | GP | W | T | L | GF–GA | Pts. |
|---|---|---|---|---|---|---|---|
| 1. | Zürcher SC | 6 | 5 | 1 | 0 | 57:26 | 11 |
| 2. | EHC Basel-Rotweiss | 6 | 2 | 2 | 2 | 33:28 | 6 |
| 3. | Montchoisi Lausanne | 6 | 2 | 1 | 3 | 25:28 | 5 |
| 4. | Grasshopper-Club | 6 | 0 | 2 | 4 | 28:61 | 2 |
Group 2
| Pl. | Team | GP | W | T | L | GF–GA | Pts. |
|---|---|---|---|---|---|---|---|
| 1. | HC Davos | 6 | 6 | 0 | 0 | 46:8 | 12 |
| 2. | EHC Arosa | 6 | 3 | 0 | 3 | 56:43 | 6 |
| 3. | Young Sprinters Neuchâtel | 6 | 3 | 0 | 3 | 48:62 | 6 |
| 4. | SC Bern | 6 | 0 | 0 | 6 | 18:55 | 0 |
Final
- Zürcher SC - HC Davos 1:8/2:4
Qualification round
- Grasshopper-Club - SC Bern 9:8/6:11
Relegation
- Grasshopper-Club - EHC Chur 5:3