Princess William most commonly refers to: Catherine, Princess of Wales (born 1982), wife of William, Prince of Wales
Princess William may also refer to: Maria Walpole (1736–1807), wife of Prince William Henry, Duke of Gloucester and Edinburgh Princess Mary, Duchess of Gloucester and Edinburgh (1776–1857), wife of Prince William Frederick, Duke of Gloucester and Edinburgh Adelaide of Saxe-Meiningen (1792–1849), queen consort of William IV, King of the United Kingdom (formerly Prince William, Duke of Clarence and St Andrews)
See also Matilda of Anjou ( – 1154), wife of William Adelin (heir apparent of Henry I, King of England) Wilhelmina, Queen of the Netherlands (1880–1962; ), known as Princess Wilhelmina prior to and after her reign Prince William (disambiguation) William of the United Kingdom (disambiguation)