Heinz Frei (born 28 January 1958) is a Swiss wheelchair athlete. Frei has had a long career of racing, winning the London Marathon wheelchair race three times, and earning 5 medals at the 2003 European games at the age of 45. He has earned 14 gold medals at the summer and winter Paralympics and is a current world record holder in the half-marathon and marathon wheelchair races. He competed in athletics at every Summer Paralympic Games from 1984 to 2008, and at the 2008 Beijing Games he also participated in cycling, using a handcycle. At the Winter Paralympics, he competed in cross-country sit-skiing between 1984 and 2006 and in the biathlon in 1994.