John Conroy (1786–1854) was a British army officer and comptroller to the Duchess of Kent and Princess Victoria, future Queen of the United Kingdom.
John Conroy may also refer to: Sir John Conroy, 3rd Baronet (1845–1900), English analytical chemist John Conroy (field hockey) (1928–1985), British field hockey player John Conroy (trade unionist) (1904–1969), Irish trade union leader John H. Conroy (1893–1966), American lawyer and politician from New York John J. Conroy (1819–1895), Irish-born clergyman of the Roman Catholic Church John M. Conroy (1920–1979), American aircraft designer Jack Conroy, leftist American writer