Harley is a surname, and may refer to
Albert Harley, English footballer
Alex Harley (1936 - 1969), A Scottish professional footballer
Bill Harley, children's entertainer
Bob Harley (1888 - 1958), a former top Canadian soccer player from the 1920s
Brilliana Harley, letter writer and a figure in the English Civil War
Chic Harley, Ohio State football player 1916–1919
David Harley, English security commentator, author, and musician
Dick Harley (1872 - 1952), a Major League Baseball player
Edward Harley (Parliamentarian) (1624–1700), father of the 1st Earl of Oxford
Edward Harley (1664–1735), his second son
Edward Harley, 2nd Earl of Oxford and Earl Mortimer, (1689–1741)
Edward Harley, 3rd Earl of Oxford and Earl Mortimer, (1699–1755), son of Edward Harley (1664–1735)
Frank Harley, a former Australian rules footballer
Harry Harley (born 4 June 1926), a Liberal party member of the Canadian House of Commons
Heidi Harley, American linguist
Henrietta Harley, Countess of Oxford and Mortimer (1694 - 1755), an English noblewoman
John Brian Harley (1932-1991), English geographer
Jim Harley (1917 - 1989), a former English footballer
John Harley (16th-century bishop) (died 1558), Bishop of Hereford
John Harley (Dean) (1728 – 1788), Dean of Windsor and Bishop of Hereford (second son of Edward Harley, 3rd Earl of Oxford)
John Pritt Harley (1786–1858), an English actor
Jon Harley, English footballer
Joseph Auty Harley, former Mayor of Nelson, New Zealand
Joseph Emile Harley, American politician
Les Harley (born 26 September 1946), an English former professional footballer
Leslie Harley (born October 26, 1912), an Australian boxer
Margaret Cavendish-Harley
Robert Harley (1579–1656), English politician of the seventeenth century
Robert Harley (c. 1706–1774), an English Member of Parliament (younger son of Edward Harley (1664-1735))
Robert Harley, 1st Earl of Oxford and Mortimer, British Lord Treasurer
Robert Harley, a British comedy writer and performer
Rufus Harley, American jazz musician
Ryan Harley (born 22 January 1985), a professional English footballer
Steve Harley, British musician
Thomas Harley (1730 – 1804), Lord Mayor of London and Member of Parliament (younger son of Edward Harley, 3rd Earl of Oxford)
Tom Harley, Australian rules footballer
Trevor Harley, a psychologist and Head of the School of Psychology at the University of Dundee
Vaughan Harley (1864-1923), British professor
William S. Harley, co-founder and first chief engineer of the Harley-Davidson Motor Company
