Lyubov Denisova (née Belavina; Russian: Любо́вь Вале́рьевна Дени́сова; born 6 October 1971) is a Russian middle- and long-distance runner. She is an athlete who earned the Russian title of “Master of Sports of International Class,” a winner of multiple major marathons in the United States who served a suspension in 2007-2009 for use of performance-enhancing drugs.