English courtier and poet whose reputation rests on a small number of ascribed lyrics in which critics have found great dexterity and sweetness.

Educated at the University of Oxford, Dyer went to court under the patronage of the Earl of Leicester. Dyer was a friend of Sir Philip Sidney, on whose death he wrote an elegy. He won favours under Queen Elizabeth I, was employed on missions to the Netherlands (1584) and Denmark (1589), and was knighted in 1596. He was arrested in Prague in 1590 when on a mission in search of the philosopher's stone. He fell out of favour under King James I and died in obscurity. His contemporary reputation as a poet was high, but little of his work, published anonymously or under initials in collections, is certainly identifiable. His best-known poem is “My Mynd to Me a Kingdom Is.”