frame|right|William Alabaster from a contemporary etching.

William Alabaster (also Alablaster, Arblastier) (27 February 1567buried 28 April 1640) was an English Neo-Latin poet, playwright, and religious writer.

Alabaster became a Roman Catholic convert in Spain when on a diplomatic mission as chaplain. His religious beliefs led him to be imprisoned several times; eventually he gave up Catholicism, and was favoured by James I. He received a prebend in St Paul's Cathedral, London, and the living of Therfield, Hertfordshire. He died at Little Shelford, Cambridgeshire.

Biography

thumb|200px|right|Title page of Alabaster's Roxana,

Alabaster was born at Hadleigh, Suffolk, the son of Roger Alabaster of the Puritan cloth merchant family long settled there, and Bridget Winthrop of Groton, Suffolk.