- Source: William Belknap
- Anna Belknap
- Tempo (musik)
- Sidang pembuktian atas pendakwaan kedua terhadap Donald Trump
- Soeharto
- Kleopatra
- William Fichtner
- Soekarno
- Muhammad
- Kerusuhan Mei 1998
- Islam
- William Belknap
- William W. Belknap
- Alejandro Mayorkas
- Anna Belknap
- Belknap
- William G. Belknap
- William Richardson Belknap
- Abraham Belknap
- President pro tempore of the United States Senate
- Belknap Hardware and Manufacturing Company
William Belknap may refer to:
William W. Belknap (1829–1890), lawyer, soldier, government administrator and the United States Secretary of War
William G. Belknap (1794–1851), United States Army general, father of William W. Belknap
William Richardson Belknap (1849–1914), president of the Belknap Hardware and Manufacturing Company
William Burke Belknap (1885–1965), American entrepreneur, son of William W. Belknap