| 1972–73 Liga Nacional de Baloncesto | |
|---|---|
| League | Liga Nacional |
| Sport | Basketball |
| Number of teams | 16 |
| TV partner(s) | Televisión Española |
| Regular Season | |
| Season champions | Real Madrid |
The 1972–73 season was the 17th season of the Liga Nacional de Baloncesto. Real Madrid won the title after winning the 30 games they played.