1998–99 National Professional Soccer League season
| Season | 1998–99 |
|---|---|
| Champions | Cleveland Crunch (3rd title) |
| Matches played | 260 |
| Top goalscorer | Hector Marinaro (84) |
| Average attendance | 5,996 |
← 1997–98 | |
The 1998–99 National Professional Soccer League season was the fifteenth season for the league.