William Austin
William Austin is the name of the following people:
- William Austin (Medic) (1754–1793), British medic
- William Austin (writer) (1778–1841), American writer
- William Austin (actor) (1884–1975), British actor
- William Austin (film editor) (1903-1993), American film editor
- William Austin (musicologist) (1920–2000), American musicologist, historian, and author