2002 NASCAR Winston West Series

The 2003 NASCAR Winston West Series was the 48th season of the Winston West Series. It began with the Winter Heat 150 at Phoenix International Raceway on February 27, and ended with The Orleans 150, at Las Vegas Motor Speedway, on November 6. Brendan Gaughan entered the season as the defending Drivers' Champion. Eric Norris won the championship, during a limited schedule in major league NASCAR racing, finishing three points away from Johnny Borneman III.