William Lloyd may refer to:
Military William Lloyd (Royal Navy officer) (1725–1796), Admiral of the White William Lloyd (British Army officer) (1778–1815), British soldier of the Napoleonic Wars, wounded at the Battle of Waterloo William Alvin Lloyd (1822–1868), steamboat and railroad guide publisher, was employed during the Civil War as a personal spy for President Abraham Lincoln William R. Lloyd (1916–1942), American naval officer
Politics William F. Lloyd (1864–1937), newspaper editor and Prime Minister of Newfoundland William Henry Lloyd (1932–1992), Baltimore attorney, candidate for the U.S House of Representatives William P. Lloyd (1837–1911), American politician from Pennsylvania William R. Lloyd Jr. (born 1947), Pennsylvania politician William Lloyd (councillor) (born 1988), Brentwood First councillor J. William Lloyd (1857–1940), American individualist anarchist William Bross Lloyd (1875–1946), American attorney and political activist William Field Lloyd (1873–1965), member of the Queensland Legislative Assembly
Religion William Lloyd (bishop of Worcester) (1627–1717), bishop of St Asaph, of Lichfield and Coventry and of Worcester William Lloyd (bishop of Norwich) (1637–1710), bishop of Llandaff, Peterborough and Norwich William Lloyd (bishop of Killala and Achonry) (died 1716), Irish Anglican priest William Lloyd (Methodist minister) (1771–1841), Welsh Anglican priest who became a Methodist preacher
William Lloyd (archdeacon of Durban) (1802–1881), archdeacon of Durban
Sportspeople William Lloyd (rugby league) (1934–2011), Australian rugby league player William Lloyd (rugby union) (born 1990), New Zealand rugby union player Bill Lloyd (basketball) (William John Lloyd, 1915–1972), American basketball player Bill Lloyd (footballer) (William George Lloyd, 1896–1950), Australian rules footballer Bill Lloyd (tennis) (William Lloyd, born 1949), Australian tennis player
Other Sir William Lloyd (mountaineer) (1782–1857), soldier and mountaineer William Forster Lloyd (1794–1852), British economist William Watkiss Lloyd (1813–1893), writer William Lloyd (engineer) (1822–1905), British civil engineer William Alford Lloyd (1826–1880), English zoologist and aquarist William Patrick Lloyd, sideman for the music band Placebo
See also Bill Lloyd (disambiguation)