Prince Wilhelm may refer to:
- Prince Wilhelm of Prussia (1783–1851)
- Prince William of Hesse (1787–1867)
- Wilhelm, Prince of Löwenstein-Wertheim-Freudenberg (1817–1887)
- Wilhelm, Prince of Hohenzollern (1864–1927)
- William of Albania (1876–1945)
- Wilhelm, German Crown Prince (1882–1951)
- Prince Wilhelm, Duke of Södermanland (1884–1965)
- Prince Wilhelm of Prussia (1906-1940)