Marco Sullivan (born April 27, 1980, in Truckee, California ) is an alpine ski racer with the U.S. Ski Team. He competed in the 2002 Winter Olympics, and has won one World Cup race, on January 26, 2008 in Chamonix, France.

Sullivan's first raced in the World Championships in 2003, where he finished 17th in the Super G and 24th in the Downhill.

Since making his World Cup debut in December 2001, Sullivan has one victory, a downhill at Chamonix, France, on January 26, 2008.. He won the renowned Kandahar downhill in Chamonix in 2:00.11, ahead of Swiss star Didier Cuche.