Kevin Ryan may refer to:

• Kevin J. Ryan (born 1969), member of the New Jersey General Assembly
• Kevin Ryan, member of the Connecticut House of Representatives

• Kevin Ryan (athlete) (born 1949), long-distance runner from New Zealand
• Kevin Ryan (Australian rules footballer) (born 1937), former Australian rules footballer
• Kevin Ryan (hurler) (born 1965), Irish hurling manager and former player
• Kevin Ryan (rugby) (born 1934), Australian sportsman, lawyer and politician

• Kevin Ryan (actor) (born 1984), Irish-born film and television actor
• Kevin Ryan (charity executive) (born 1967), President and CEO of the charity Covenant House International
• Kevin A. Ryan (born 1932), founder and director emeritus of the Center for the Advancement of Ethics and Character at Boston University
• Kevin P. Ryan, American entrepreneur, founder and CEO of Gilt Groupe, and former DoubleClick CEO
• Kevin V. Ryan (born 1957), American attorney, former U.S. Attorney for the Northern District of California
• Kevin Ryan (science fiction author), American author of Star Trek novels

• Kevin Ryan (Castle), from the American TV show Castle