William Small (disambiguation)
William Small was a professor of natural philosophy, College of William and Mary in Virginia.
William Small may also refer to:
- William Small (Wisconsin politician), Scottish-born Wisconsin politician
- William Small (artist), Scottish artist
- William Small (basketball), American basketball coach
- William Small (Scottish politician), Scottish Labour Party politician
- William Small (trade unionist), Scottish trade unionist
- William B. Small (trade unionist), his son, Scottish trade unionist
- William B. Small (politician), U.S. Representative from New Hampshire
- William N. Small, U.S. Navy admiral
- William J. Small, American television executive