Rob MacCachren (born March 24, 1965) is an American off-road racer from Las Vegas, Nevada.
MacCachren won over 200 off-road races including four editions of the Baja 1000.
He raced the Mickey Thompson Stadium Series early in his career and went on to win championships in Championship Off-Road Racing (CORR), SCORE International, SODA, and Best in the Desert (BITD).
MacCachren won his 200th event at Crandon International Off-Road Raceway at the 2012 World Championship Pro 2 race.
He has won 20 championships during his racing career, including three BorgWarner World Championships and the 2008 CORR Pro-2 championship.
He drives the Rockstar Energy Drink Ford Trophy Truck in SCORE and the Rockstar Energy Drink Pro 2 Unlimited in LOORRS.
He is a 2011 inductee in the Off-road Motorsports Hall of Fame.