William of England
William of England may refer to any of the following monarchs of England and later the United Kingdom:

William I (–1087; ), also known as William the Conqueror or William the Bastard
William II of England (–1100; ), also known as William Rufus
William III of England (1650–1702; ), also known as William II in Scotland and William of Orange
William IV (1765–1837; ), King of the United Kingdom

See also
 King William (disambiguation), lists monarchs named William that ruled outside of England and the modern United Kingdom
William the Lion (–1214; ), also known as William I, King of Scots, reign was second longest in history of Kingdom of Scotland
 Prince William (disambiguation)
 William of the United Kingdom (disambiguation)
 William, Prince of Wales (born 1982), heir apparent to throne of United Kingdom and other Commonwealth realms