1972–73 Nationalliga A
| Season | 1972–73 |
|---|---|
| Champions | Basel |
| Relegated | Fribourg Grenchen |
| Top goalscorer | Ottmar Hitzfeld (Basel) and Ove Grahn (Lausanne-Sport) both 18 goals |
← 1971–72 1973–74 → | |
| Season | 1972–73 |
|---|---|
| Champions | Xamax |
| Promoted | Xamax CS Chênois |
| Relegated | SC Brühl SC Buochs |
| Top goalscorer | Jean-Robert Rub (Xamax) and Guy Mathez (Xamax) both 18 goals |
← 1971–72 1973–74 → | |
The following is the summary of the Swiss National League in the 1972–73 football season, both Nationalliga A and Nationalliga B. This was the 76th season of top-tier and the 75th season of second-tier football in Switzerland.