Oleg Alekseyevich Protopopov () (b. June 16, 1932, in Leningrad (now St. Petersburg), Russia is a Russian-born figure skater. With his partner Ludmila Belousova, Protopopov won two gold medals in pairs at the Olympic Winter Games in 1964, in Innsbruck, Austria, and 1968, in Grenoble, and four World Championships in 1965, 1966, 1967 and 1968. In September 24, 1979, while Protopopov was touring in Europe, he defected with his partner Ludmila Belousova to Switzerland where they applied for political asylum. He currently lives in Switzerland.