William Herbert may refer to:
Earls of Pembroke William Herbert, 1st Earl of Pembroke (died 1469) (c. 1423–1469) William Herbert, 2nd Earl of Pembroke (1451–1491) William Herbert, 1st Earl of Pembroke (died 1570) (c. 1501–1570), Tudor period noble and courtier William Herbert, 3rd Earl of Pembroke (1580–1630) William Herbert, 6th Earl of Pembroke (c. 1640–1674), English nobleman and politician William Herbert, 18th Earl of Pembroke (born 1978)
Other peers William Herbert, 1st Baron Powis (1572–1655), English peer and landowner William Herbert, 1st Marquess of Powis (1626–1696), English peer and landowner William Herbert, 2nd Marquess of Powis (1665–1745), English and later British peer and landowner William Herbert, 3rd Marquess of Powis (1698–1748), British peer and landowner
Others William Herbert (MP fl.1555), MP for Monmouthshire 1555 William Herbert (Captain), MP for Cardiff 1555 Sir William Herbert (planter) (died 1593), Elizabethan planter in Ireland and MP for Monmouthshire 1584–1597 William Herbert (died 1645), Welsh politician, MP for Cardiff 1621 William Herbert (Royalist) (died 1642), Welsh politician, MP for Cardiff 1640 William Herbert (died 1646) (1621–1646), English politician, MP for Monmouthshire 1640 William Herbert (of Coldbrook) (died 1646), Welsh politician, MP for Monmouthshire 1626 William Herbert (British Army officer, died 1757) (c. 1696–1757), general and member of parliament William Herbert (antiquarian) (1771–1851), English librarian and antiquary William Herbert (bibliographer) (1718–1795), editor of Typographical Antiquities by Joseph Ames William Herbert (botanist) (1778–1847), British botanist, poet, and clergyman William Herbert (British Army officer, born 1880) (1880–1949), British general William Herbert (mayor) (1743–1818), Irish American politician, banker, and mayor of Alexandria, Virginia Billy Herbert (1888–1928), English footballer
See also Herbert (surname)