1949–50 Nationalliga A season
The 1949–50 Nationalliga A season was the 12th 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.
First round
Group 1
| Pl. | Team | GP | W | T | L | GF-GA | Pts. |
| 1. | Zürcher SC | 6 | 5 | 0 | 1 | 40:18 | 10 |
| 2. | Lausanne HC | 6 | 3 | 1 | 2 | 18:11 | 7 |
| 3. | EHC Basel-Rotweiss | 6 | 3 | 0 | 3 | 18:28 | 6 |
| 4. | Young Sprinters Neuchâtel | 6 | 0 | 1 | 5 | 10:29 | 1 |
Group 2
| Pl. | Team | GP | W | T | L | GF-GA | Pts. |
| 1. | EHC Arosa | 6 | 5 | 0 | 1 | 58:27 | 10 |
| 2. | HC Davos | 6 | 5 | 0 | 1 | 50:23 | 10 |
| 3. | SC Bern | 6 | 1 | 0 | 5 | 30:39 | 2 |
| 4. | Grasshopper-Club | 6 | 1 | 0 | 5 | 18:67 | 2 |
Final round
| Pl. | Team | GP | W | T | L | GF-GA | Pts. |
| 1. | HC Davos | 6 | 4 | 1 | 1 | 25:19 | 9 |
| 2. | Lausanne HC | 6 | 3 | 0 | 3 | 21:19 | 6 |
| 3. | Zürcher SC | 6 | 2 | 1 | 3 | 17:24 | 5 |
| 4. | EHC Arosa | 6 | 2 | 0 | 4 | 30:31 | 4 |
5th-8th place
| Pl. | Team | GP | W | T | L | GF-GA | Pts. |
| 5. | EHC Basel-Rotweiss | 6 | 4 | 1 | 1 | 35:17 | 9 |
| 6. | SC Bern | 6 | 2 | 1 | 3 | 25:25 | 5 |
| 7. | Young Sprinters Neuchâtel | 6 | 2 | 1 | 3 | 23:28 | 5 |
| 8. | Grasshopper-Club | 6 | 2 | 1 | 3 | 29:42 | 5 |
Relegation
- Grasshopper-Club - HC Ambrì-Piotta 3:2