William Hammond may refer to:
Sports William Hammond (cyclist) (1886–?), British Olympic road racing cyclist William Hammond (fencer) (1872–?), British Olympic fencer at the 1920 and 1924 Olympics William Hammond (cricketer) (fl.1855–1868)
Politicians William Hammond (died 1763), British Member of Parliament for Southwark William Hammond (died 1575), MP for Guildford
Others William Hammond (died 1685) (c.1635–c.1685), Original Fellow of the Royal Society William Hammond (1707–1787), Danish landowner William Hammond (hymnist) (1719–1783), English hymnist William A. Hammond (1828–1900), neurologist, 11th US Army Surgeon General Bill Hammond (1947–2021), New Zealand artist William Hammond (ship), a barque used to transport convicts to Western Australia William Hammond (historian), American historian William Archie Hammond, founder of the W.A. Hammond Drierite Company William C. Hammond (born 1947), American novelist of historical fiction William Churchill Hammond (1860–1949), American organist and music educator