William Eaton
William Eaton or Bill Eaton may refer to:
- William Eaton (soldier), United States Army soldier during the Barbary Wars
- William Eaton (athlete), British long-distance runner
- William Eaton (guitarist), American luthier and guitar player
- William Eaton (scientist), American biophysicist
- William W. Eaton, politician from Connecticut
- William Eaton, [2nd Baron Cheylesmore], collector of English mezzotint portraits
- William R. Eaton, U.S. Representative from Colorado
- William J. Eaton, American journalist
- William A. Eaton, U.S. diplomat
- William M. Eaton, American businessman
- William W. Eaton (epidemiologist), epidemiologist and psychiatrist, winner of the 2000 Rema Lapouse Award