The Hon. William Herbert (12 January 1778 – 28 May 1847) was a British botanist, botanical illustrator, poet, and clergyman. He served as a member of parliament for Hampshire from 1806 to 1807, and for Cricklade from 1811 to 1812. His botanical writings are noted for his treatment of Amaryllidaceae.
His major works, including sermons, reviews, and scientific memoirs, besides his early poetical volumes, appeared in 2 volumes in 1842. He edited Musae Etonensis (1795) while still at school and, on quitting Eton, obtained a prize for a Latin poem on the subject Rhenus, which was published. A translation appeared in Translations of Oxford Prize Poems, 1831.