William Cox
William Cox is the name of the following people:
- William Cox (pioneer) (1764–1837), British soldier and Australian road builder
- William Cox (track and field athlete) (1904-1996), American track and field athlete
- William Cox (Governor) (* 1936), Australian lawyer, judge and politician
- William E. Cox (1861–1942), American politician
- William Hopkinson Cox (1856–1950), American politician
- William Morton Cox (1880–1970), American politician
- William Ruffin Cox (1832–1919), American politician and general