1965–66 Nationalliga A
| Season | 1965–66 |
|---|---|
| Champions | Zürich |
| Relegated | Luzern Urania Genève Sport |
| Top goalscorer | Rolf Blättler (GC) 28 goals |
← 1964–65 1966–67 → | |
| Season | 1965–66 |
|---|---|
| Champions | Winterthur |
| Promoted | Winterthur FC Moutier |
| Relegated | FC Porrentruy Cantonal Neuchâtel |
← 1964–65 1966–67 → | |
The following is the summary of the Swiss National League in the 1965–66 football season, both Nationalliga A and Nationalliga B. This was the 69th season of top-tier and the 68th season of second-tier football in Switzerland.