William Breton may refer to:
William Briton (died 1356), William Breton William the Breton (c. 1165–c. 1225), French chronicler and poet Sir William Breton (MP), Keeper of the Privy Purse (1763–1773) for George II
See also William Bretton (1909–1971), Dean of Nelson William Britain (disambiguation) William Britton (disambiguation)