Mary Vernon

Mary Vernon may refer to
 * Mary Vernon, stillborn child of fictional character Jenny Wolek on the One Life to Live soap opera
 * 'Mary Vernon', a cultivar of Iris variegata
 * Mary Vernon, a painter of flowers, fruits, and still lifes, listed in English Female Artists (1876)
 * Mary K. Vernon, American computer scientist
 * The Honourable Mary Venables-Vernon, daughter of the 1st Lord Vernon and wife of George Anson (1731–1789)