Wilhelm is a German given name, and the origin of the English name William. The feminine form is Wilhelmine.
People with the given name Wilhelm
- Wilhelm I, German Emperor (1797–1888), King of Prussia and German Emperor
- Wilhelm II, German Emperor (1859–1941), grandson of the former, King of Prussia and German Emperor
- Wilhelm Boger (1906–1977), German police officer and one of the SS staff at Auschwitz concentration camp
- Wilhelm Burgdorf (1895–1945), commander and staff officer in the German Army during World War II
- Wilhelm Heinrich Erb (1840–1921), German Neurologist
- Wilhelm Frick (1877–1946), German Nazi politician
- Wilhelm Furtwängler (1886–1954), German conductor and composer, leader of the Berlin and Vienna Philharmonic Orchestra
- Wilhelm Grimm (1786–1859), German anthropologist
- Wilhelm Keitel (1882–1946), German Field Marshal
- Wilhelm List (1880–1971), German Field Marshal
- Wilhelm Reich (1897–1957), Austrian-American psychiatrist and psychoanalyst
- Wilhelm Wien (1864–1928), Nobel Prize Winner in 1911 and scientist who created Wien's Displacement Law
- Wilhelm Weitling (1808–1871), early German communist or socialist
- Wilhelm Wundt (1832–1920), German doctor and psychologist
Fictional characters
- Colonel Wilhelm Klink in Hogan's Heroes
- Wilhelm (Xenosaga) in Xenosaga
- Wilhelm, servant in manga Ludwig Kakumei
- Wilhelm Wicki, a character in the 2009 film, Inglorious Basterds
People with the surname Wilhelm
- Bill Wilhelm (1929–2010), American college baseball coach
- Carl Wilhelm (1885-?), a German film director, film producer and screenwriter of the silent film era
- Eugene Wilhelm (1866-1951), a French lawyer and sexologist
- Hoyt Wilhelm (1923–2002), a major league baseball pitcher
- Karl Wilhelm (disambiguation)
- Kate Wilhelm (born 1928), an American writer
- Kati Wilhelm (born 1976), a German biathlete
- Manuel Wilhelm, a German rugby union player
- Mary Jo Wilhelm, an Iowa politician
- Richard Wilhelm (disambiguation)
- William Charles John Pitcher or C. Wilhelm (1858–1925), a British costume designer of the Victorian era and Edwardian period
People with Wilhelm as middle name
Fictional character
- Mr. Wilhelm, a recurring minor character in Seinfeld
