John Day, 1522–84, English printer. At his London shop Day designed and made type for himself, but not for sale. His types included musical notes and the first Anglo-Saxon type. He printed the first English book of church music (1560) and the first English edition of John Foxe's Book of Martyrs (1563), though not under that title (see Foxe, John). His edition of Euclid was the first English translation of that work. Day's printer's mark was a rising sun, a sleeper awakening, and the motto, "Arise, for it is Day."

John Day, 1574?–1640?, English dramatist. Educated at Cambridge, he was one of Philip Henslowe's group of playwrights, collaborating with Thomas Dekker, Henry Chettle, and others. The allegorical masque The Parliament of Bees, which was written c.1607 (pub. 1641) is his only important work. His other plays include The Isle of Gulls (1606) and The Travels of Three English Brothers (1607).