William Dawes (1745–1799) was an American notable for his actions in the American Revolution.
William Dawes may also refer to: Sir William Dawes, 3rd Baronet (1671–1724), Bishop of Chester and Archbishop of York William Dawes (British Marines officer) (1762–1836), British Marines officer, pioneer in New South Wales, governor of Sierra Leone, astronomer, and abolitionist William Rutter Dawes (1799–1868), British astronomer William Dawes (abolitionist), American abolitionist and fund raiser for Oberlin College in 1840 William Bower Dawes (1807–1869), South Australian politician
See also William Dawe, author William Dawes Miller, engineer