| Category | Sprint car racing |
|---|---|
| Country | United States |
| Inaugural season | 2006 |
| Folded | 2006 |
| Last Drivers' champion | Danny Lasoski |
| Last Constructors' champion | Roth Motorsports |
The National Sprint Tour was a United States sprint car racing league. It formed in 2005 as a rival to the World of Outlaws. The series folded after one season. The series was started by Brownfield Promotions, Inc. of Snohomish, Washington. The series featured 410 winged sprint cars. After the death of Fred Brownfield, the series was bought by Don Lamberti and Lonnie Parsons (#6 Casey's General Store), Guy Stockbridge (#14 Elite Racing), and Steve Kinser (#11 Quaker State).
Notable former drivers in the NST included 20-time World of Outlaws champion Steve Kinser (Steve Kinser Racing), Danny Lasoski (Roth Motorsports), and Tim Kaeding (Previously Steve Kinser Racing). Lasoski won the inaugural NST championship.