John Hanley or Jack Hanley may refer to:
John Hanley, early resident of Calhoun, Kentucky John C. Hanley, United States Army general John Hanley (runner) (born 1923), 3rd in the 3000 m steeplechase at the 1946 USA Outdoor Track and Field Championships John Hanley (hurdler) (born 1947), American hurdler, 1969 All-American for the Rutgers Scarlet Knights track and field team Jack Hanley, personality of American serial killer John Wayne Gacy Jack Hanley (shot putter) (born 1949), American shot putter, 1969 All-American for the Maryland Terrapins track and field team