Nationalliga A 1989-90
La Nationalliga A 1989-90 fue la 93.ª temporada del Campeonato Suizo de Fútbol.
Temporada regular
| Pos | Club | PJ | PG | PE | PP | GF | GC | Pts |
| 1 | FC St. Gallen | 22 | 9 | 10 | 3 | 40 | 24 | 28 |
| 2 | Grasshopper Club Zürich | 22 | 11 | 5 | 6 | 38 | 32 | 27 |
| 3 | Neuchâtel Xamax | 22 | 9 | 7 | 6 | 31 | 24 | 25 |
| 4 | FC Lucerne | 22 | 9 | 6 | 7 | 39 | 29 | 24 |
| 5 | FC Sion | 22 | 9 | 5 | 8 | 29 | 31 | 23 |
| 6 | Lausanne Sports | 22 | 6 | 10 | 6 | 28 | 27 | 22 |
| 7 | AC Lugano | 22 | 8 | 6 | 8 | 36 | 35 | 22 |
| 8 | BSC Young Boys | 22 | 7 | 7 | 8 | 29 | 29 | 21 |
| 9 | Servette FC | 22 | 7 | 7 | 8 | 34 | 36 | 21 |
| 10 | FC Wettingen | 22 | 7 | 5 | 10 | 18 | 27 | 19 |
| 11 | FC Aarau | 22 | 5 | 7 | 10 | 20 | 30 | 17 |
| 12 | AC Bellinzona | 22 | 5 | 5 | 12 | 31 | 49 | 15 |
Grupo por el título
| Pos | Club | PJ | PG | PE | PP | GF | GC | Pts | Bonus |
| 1 | Grasshopper Club Zürich | 14 | 9 | 0 | 5 | 28 | 15 | 31 | (13) |
| 2 | Lausanne Sports | 14 | 7 | 6 | 1 | 23 | 9 | 31 | (11) |
| 3 | Neuchâtel Xamax | 14 | 5 | 6 | 3 | 18 | 14 | 30 | (14) |
| 4 | FC Lucerne | 14 | 6 | 4 | 4 | 20 | 22 | 28 | (12) |
| 5 | FC St. Gallen | 14 | 4 | 5 | 5 | 19 | 15 | 27 | (14) |
| 6 | AC Lugano | 14 | 4 | 4 | 6 | 11 | 23 | 23 | (11) |
| 7 | BSC Young Boys | 14 | 2 | 6 | 6 | 11 | 20 | 21 | (11) |
| 8 | FC Sion | 14 | 1 | 5 | 8 | 10 | 22 | 19 | (12) |
| Campeón y clasificado para la Copa de Campeones de Europa 1990-91 | |
| Recopa de Europa 1990-91 | |
| Copa de la UEFA 1990-91 |
Grupo por el ascenso/descenso
Grupo A
| Pos | Club | PJ | PG | PE | PP | GF | GC | Pts |
| 1 | Servette FC | 14 | 8 | 4 | 2 | 29 | 13 | 20 |
| 2 | FC Zürich | 14 | 8 | 4 | 2 | 30 | 17 | 20 |
| 3 | FC Basel | 14 | 6 | 5 | 3 | 27 | 17 | 17 |
| 4 | AC Bellinzona | 14 | 5 | 5 | 4 | 19 | 16 | 15 |
| 5 | Yverdon-Sport FC | 14 | 3 | 7 | 4 | 14 | 16 | 13 |
| 6 | FC Fribourg | 14 | 4 | 3 | 7 | 17 | 27 | 11 |
| 7 | FC Chur | 14 | 3 | 3 | 8 | 9 | 21 | 9 |
| 8 | FC Schaffhausen | 14 | 2 | 3 | 9 | 15 | 33 | 7 |
Grupo B
| Pos | Club | PJ | PG | PE | PP | GF | GC | Pts |
| 1 | FC Aarau | 14 | 10 | 2 | 2 | 35 | 10 | 22 |
| 2 | FC Wettingen | 14 | 9 | 4 | 1 | 29 | 9 | 22 |
| 3 | FC Bulle | 14 | 6 | 5 | 3 | 24 | 18 | 17 |
| 4 | FC Baden | 14 | 6 | 4 | 4 | 31 | 25 | 16 |
| 5 | FC Locarno | 14 | 4 | 5 | 5 | 15 | 17 | 13 |
| 6 | FC Grenchen | 14 | 2 | 5 | 7 | 18 | 28 | 9 |
| 7 | FC Winterthur | 14 | 2 | 3 | 9 | 15 | 38 | 7 |
| 8 | CS Chênois | 14 | 1 | 4 | 9 | 12 | 34 | 6 |
| Nationalliga A 1990/91 |
Referencias
| Predecesor: Nationalliga A 1988-89 |
Campeonato Suizo 1989-90 |
Sucesor: Nationalliga A 1990-91 |