Prince Wilhelm may refer to:
- Prince Wilhelm of Prussia (1783–1851), youngest child of Frederick William II, King of Prussia
- Wilhelm, Prince of Löwenstein-Wertheim-Freudenberg (1817–1887; )
- Wilhelm, Prince of Hohenzollern (1864–1927; )
- Wilhelm, Prince of Albania (1876–1945; )
- Wilhelm, German Crown Prince (1882–1951), heir apparent of Wilhelm II
- Prince Wilhelm, Duke of Södermanland (1884–1965), second son of Gustaf V, King of Sweden
- Prince Wilhelm of Prussia (1906–1940), grandson of Wilhelm II
See also
- Kaiser Wilhelm (disambiguation)
- Wilhelm I (1797–1888; ), German Emperor
- Kaiser Wilhelm II (disambiguation)
- Wilhelm II (1859–1941; ), German Emperor
- Kronprinz Wilhelm (disambiguation)
- Prince Wilhelm of Sweden, protagonist of the 2021 Swedish television series Young Royals
- Prince William (disambiguation)
- Wilhelmina, Queen of the Netherlands (1880–1962; ), Dutch princess by birth
- Wilhelmine of Prussia (disambiguation), including a list of princesses with the name