William Badger (1779–1852) was an American manufacturer and governor of New Hampshire.
William Badger may also refer to:
William Badger (died 1629), member of parliament (MP) for Winchester William Badger (died 1578), MP for Cricklade William Badger (shipbuilder) (1752–1830), master shipbuilder operating in Kittery, Maine, United States who built more than 100 vessels William R. Badger (1886–1911), pioneer aviator William Thompson Badger (1884–1926), politician in Saskatchewan, Canada USS William Badger, a whaler acquired by the Union Navy during the American Civil War Bill Badger, fictional character from Bill Badger and the Pirates