| Competition: | National Professional Soccer League |
| Season: | 1990–91 |
| Winners: | Chicago Power |
| League Topscorer: | Andy Chapman (77) |
| Matches: | 180 |
| Average Attendance: | 3,494 |
| Prevseason: | 1989–90 |
| Nextseason: | 1991–92 |
The 1990–91 National Professional Soccer League season was the seventh season for the league and first under the name National Professional Soccer League. Teams were added in Detroit, Rockford, Illinois and Albany, New York.
| width=150 | Player | width=100 | Team | width=28 | width=28 | width=28 | width=28 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Andy Chapman | Detroit | 40 | 77 | 37 | 180 | ||||||
| Pato Margetic | Chicago | 39 | 37 | 80 | 149 | ||||||
| Gino DiFlorio | Canton | 39 | 62 | 26 | 143 | ||||||
| Mirko Castillo | Chicago | 31 | 63 | 27 | 140 | ||||||
| Zoran Savic | Atlanta | 38 | 56 | 32 | 135 | ||||||
| Dan O'Keefe | Detroit | 38 | 73 | 10 | 130 | ||||||
| Dennis Brose | Dayton | 40 | 62 | 22 | 128 | ||||||
| John Abe | Hershey | 39 | 44 | 40 | 114 | ||||||
| Franklin McIntosh | Atlanta/Hershey | 41 | 48 | 31 | 114 | ||||||
| George Pastor | Milwaukee | 40 | 52 | 21 | 113 |
| width=150 | Player | width=100 | Team | width=36 | width=28 | width=36 | width=28 | width=28 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tony Pierce | Milwaukee | 1214 | 187 | 9.24 | 14 | 5 | |||||||
| A. J. Lachowski | Atlanta | 1573 | 245 | 9.34 | 15 | 12 | |||||||
| Felipe Hernandez | Milwaukee | 1154 | 190 | 9.88 | 9 | 12 | |||||||
| Jamie Swanner | Canton | 2159 | 382 | 10.61 | 25 | 9 | |||||||
| Mark Berry | Chicago | 1577 | 279 | 10.61 | 16 | 6 | |||||||
| Yaro Dachniwsky | Atlanta | 803 | 143 | 10.69 | 10 | 3 | |||||||
| Bryan Finnerty | Detroit | 1397 | 252 | 10.82 | 14 | 10 |
| width=190 | First Team | width=28 | width=190 | Second Team | |
|---|---|---|---|---|---|
| Jamie Swanner, Canton | G | Tony Pierce, Milwaukee | |||
| Denzil Antonio, Canton | D | Bret Hall, Chicago | |||
| Arturo Velazco, Milwaukee | D | Michael Richardson, Chicago | |||
| Pato Margetic, Chicago | M/F | Tony Bono, Dayton | |||
| Andy Chapman, Detroit | M/F | Mirko Castillo, Chicago | |||
| Gino DiFlorio, Canton | M/F | Zoran Savic, Atlanta |