William Deacon may refer to: William Deacon (politician) (1872–1943), member of the Queensland Legislative Assembly William Deacon (cricketer) (1828–1903), English cricketer and banker William Arthur Deacon (1890–1977), Canadian literary critic and editor William Frederick Deacon (1799–1845), English author and journalist Bill Deacon (1944–2019), New Zealand rugby league player