William Cumming
William Cumming may refer to:
- William Cumming (Continental Congress) (1724–1797), American lawyer, Continental Congressman for North Carolina
 - William Cumming (colonel) (1786–1863), American soldier and planter from Augusta, Georgia
 - William Skeoch Cumming (1864–1929), Scottish watercolourist
 - William Cumming (politician) (1886–1951), Australian politician
 - William Cumming (artist) (1917–2010), American artist