The 1999 NASCAR Winston West Series was the 46th season of the series. The title was won by Sean Woodside, his first in the series.
The 1999 season included 14 individual races, although Las Vegas Motor Speedway, Mesa Marin Raceway, and Irwindale Speedway hosted two races each. The series finale would be held outside the United States, running at Twin Ring Motegi Superspeedway in Japan.
() Bold â Pole position awarded by time. Italics â Pole position set by owner's points. * â Most laps led.