William Eliot may refer to:
William Greenleaf Eliot (1811–1887), American educator, Unitarian clergyman, and founder of Washington University William Eliot, 2nd Earl of St Germans (1767–1845), British diplomat and politician William Eliot, 4th Earl of St Germans (1829–1881), British diplomat and Liberal politician William Eliot (MP) (1586–1650), English politician William Havard Eliot (1796–1831), architect and builder of the Tremont House in Massachusetts
See also William Elliot (disambiguation) Billy Elliot (disambiguation) William Elliott (disambiguation)