The 1971–72 Nationalliga A season was the 34th season of the Nationalliga A, the top level of ice hockey in Switzerland. Eight teams participated in the league, and HC La Chaux-de-Fonds won the championship.
| Pl. | Team | GP | W | T | L | GF–GA | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1. | HC La Chaux-de-Fonds | 14 | 12 | 1 | 1 | 99:30 | 25 | |
| 2. | HC Lugano | 14 | 9 | 0 | 5 | 56:44 | 18 | |
| 3. | EHC Kloten | 14 | 8 | 0 | 6 | 76:58 | 16 | |
| 4. | HC Servette Genève | 14 | 8 | 0 | 6 | 55:40 | 16 | |
| 5. | SC Langnau | 14 | 8 | 0 | 6 | 55:66 | 16 | |
| 6. | HC Ambrì-Piotta | 14 | 7 | 1 | 6 | 58:51 | 15 | |
| 7. | EHC Visp | 14 | 3 | 0 | 11 | 36:73 | 6 | |
| 8. | HC Sierre | 14 | 0 | 0 | 14 | 31:104 | 0 |
| Pl. | Team | GP | W | T | L | GF–GA | Pts (B) | |
|---|---|---|---|---|---|---|---|---|
| 1. | HC La Chaux-de-Fonds | 8 | 7 | 0 | 1 | 49:21 | 17(3) | |
| 2. | EHC Kloten | 8 | 4 | 1 | 3 | 47:36 | 10(1) | |
| 3. | HC Servette Genève | 8 | 4 | 1 | 3 | 43:37 | 9(0) | |
| 4. | HC Lugano | 8 | 2 | 0 | 6 | 30:45 | 6(2) | |
| 5. | SC Langnau | 8 | 2 | 0 | 6 | 28:58 | 4(0) |
| Pl. | Team | GP | W | T | L | GF–GA | Pts (B) | |
|---|---|---|---|---|---|---|---|---|
| 1. | HC Ambrì-Piotta | 8 | 4 | 3 | 1 | 36:24 | 13(2) | |
| 2. | HC Sierre | 8 | 4 | 1 | 3 | 33:32 | 9(0) | |
| 3. | EHC Visp | 8 | 1 | 2 | 5 | 19:32 | 5(1) |