William Child was a composer.
William Child may also refer to:
William Child (boxer), British boxer William Child (MP) (died c.1398), MP for New Romney William Child of Northwick, High Sheriff of Worcestershire in 1586 or 1587 William Child, High Sheriff of Shropshire in 1784 William Child, owner and 16th-century Lord of Cofton Hackett
See also William Child-Villiers William Childs (disambiguation)