William John

William John or Will John may refer to:


 * William John (Medal of Honor) (1844–1927), American Civil War soldier and Medal of Honor recipient
 * William Goscombe John (1860–1952), Welsh sculptor
 * Will John (politician) (William John, 1878–1955), Welsh Labour Party Member of Parliament for Rhondda West 1920–1955
 * William M. John (1888⁠–1962), American writer
 * Will John (born 1985), American soccer player