GREENWOOD, JOHN (d. 1593), English Puritan and Separatist (the date and place of his birth are unknown), was educated at Corpus Christi college, Cambridge. By 1586 he was the recognized leader of the London Separatists, many of whom had been imprisoned at various times since 1567. Greenwood was arrested early in Oct. 1586, and the following May was committed to the Fleet prison. During his imprisonment he wrote some controversial tracts in conjunction with his fellow-prisoner Henry Barrowe. He was certainly at large in Sept. 1592, when he was elected "teacher" of the Separatist church. Meanwhile he had written (1590) "An Answer to George Gifford's pretended Defence of Read Prayers." On Dec. 5 he was again arrested; and the following March was tried, together with Barrowe, and con demned to death on a charge of "devising and circulating seditious books." After two respites, one at the foot of the gallows, he was hanged on April 6, See B. Brook, Lives of the Puritans (1813) ; H. M. Dexter, The Congregationalism of the last three hundred years (188o) and The England and Holland of the Pilgrims (1905) ; F. J. Powicke, Henry Barrow and the Exiled Church of Amsterdam (1900).