Stephen Roche (; born 28 November 1959) is an Irish former professional road racing cyclist. In a 13-year professional career, he peaked in 1987, becoming the second of only two cyclists to win the Triple Crown of victories in the Tour de France and the Giro d'Italia stage races, plus the World road race championship, the first was Eddy Merckx. Roche's rise coincided with that of fellow Irishman Sean Kelly.
Although one of the finest cyclists of his generation and admired for his pedalling style, he struggled with knee injuries and never contended in the Grand Tours post-1987. He had 58 professional career wins. All of these wins still stand, despite Roche having been accused by an Italian judge of taking EPO in the later part of his career.