William Maynard

William Maynard may refer to:
 * William Maynard, 1st Baron Maynard (1586–1640)
 * William Maynard, 2nd Baron Maynard (1620s–1689)
 * William Maynard (footballer) (1853–1921), English football player
 * Sir William Maynard, 1st Baronet (1641–1685), English MP for Essex 1685
 * Sir William Maynard, 4th Baronet (1721–1772), English MP for Essex 1759–1772
 * William S. Maynard (1802–1866), U.S. politician
 * William H. Maynard (1786–1832), American lawyer, newspaper editor and politician from New York
 * Bill Maynard (1928–2018), English actor and comedian