Princess William

Princess William may refer to:
 * Maria, Duchess of Gloucester and Edinburgh (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), wife of Prince William, Duke of Clarence and St Andrews, who became William IV of the United Kingdom
 * Catherine, Princess of Wales (born 1982), wife of William, Prince of Wales, the heir apparent to the British throne