Oscar "Oz" Sanchez (born December 2, 1975) is an American Paralympic handcyclist and triathlete. A former Marine, he has a spinal cord injury following a motorcycle accident in 2001. He started handcycling competitively in 2006, and competes in the H5 classification. At the 2011 Parapan American Games, Sanchez won a gold in the road race and time trial for his classification. He won medals at the 2008, 2012 Paralympic Games and 2016 Paralympic Games. Sanchez was also a medallist at the UCI Para-cycling Road World Championships in 2009, 2010 and 2011.