William Niven (disambiguation)

William Niven (1850–1937), was a Scottish-American mineralogist and archeologist.

William Niven may also refer to:


 * William Davidson Niven (1842–1917), British mathematician and electrical engineer
 * William Dickie Niven (1879–1965), professor of ecclesiastical history
 * William E. G. Niven, in 83rd Regiment of Foot (Royal Glasgow Volunteers) and father of David Niven
 * Bill Niven, historian, see Naked Among Wolves