Oscar "Oz" Sanchez 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. He won medals at the 2008 and 2012 Paralympic Games, and at the UCI Para-cycling Road World Championships in 2009, 2010 and 2011.