William Harbert, educated at Christ Church Oxford (M.A. 1605) was in the service of Prince Henry. He "may be identified with the friend of Raleigh who accompanied him on his last voyage" R. M. Cummings, Spenser: The Critical Heritage (1971) 117. Alexander B. Grosart supposes him to be the "W. Herbert" who wore commendatory verses to Browne of Tavistock's Britannia's Pastorals.
A prophecie of Cadwallader, last King of the Brittaines. 1604.
Englands sorrowe: or a farewell to Essex. 1606.
Poems, ed. A. B. Grosart. 1870.