2006 NPSL season
The 2006 National Premier Soccer League season was the 4th season of the NPSL. The season started in May 2006, and ended with the NPSL Championship Game in August 2006.
Sacramento Knights finished the season as national champions, beating Princeton 56ers in the NPSL Championship game
Changes From 2005
New Franchises
- Five franchises joined the league this year, all expansion franchises:
| Team name | Metro area | Location | Previous affiliation |
| Denver Kickers | Denver area | Golden, CO | expansion |
| Phoenix Banat Storm | Phoenix area | Avondale, AZ | expansion |
| Redwood City Ruckus | San Mateo County area | San Bruno, CA | expansion |
| San Jose Frogs | San Diego area | Carlsbad, CA | expansion |
| Southern California Fusion | San Diego area | San Jose, CA | expansion |
Name Changes
- Minnesota Blast changed its name to Minnesota NSC United