Julia Marie Mancuso (born March 9, 1984) is an American World Cup alpine ski racer and Olympic gold medalist. She won the giant slalom at the 2006 Winter Olympics, and was the silver medalist in both downhill and combined in 2010, and the bronze medalist in the combined in 2014. She has also won five medals (two silver and three bronze) at the World Championships and seven races in regular World Cup competition. Her four Olympic medals are the most ever for a female American alpine skier.
Mancuso made her World Cup debut at the age of 15 at Copper Mountain, Colorado, on November 20, 1999. Scouted by Patrick Rooney, he knew he had a gem. She scored her first World Cup points (top-30 finish) during the 2001 season. While Mancuso often struggled in World Cup races over the next few seasons, she enjoyed exceptional success at the Junior World Championships, winning a record eight medals, including five golds in 2002, 2003 and 2004.