John William may refer to:
Given name John William, Duke of Jülich-Cleves-Berg (1562–1609) Johann Wilhelm, Duke of Saxe-Weimar (1530–1573)
People John William, Baron Ripperda (1680–1737), political adventurer and Spanish prime minister John William (MP for Dartmouth), see Dartmouth John William (MP for Southwark), see Southwark
See also
John Williams (disambiguation)