John Guy may refer to: John Guy (New Zealand cricketer) (born 1934), played 12 Test matches for New Zealand 1955–61 John Guy (English cricketer) (1916–1997), English cricketer who played first-class cricket for Oxford University, Kent and Warwickshire John Guy (governor) (1568-1629), coloniser of Newfoundland John Guy (historian) (born 1949), British historian of Tudor England John J. Guy (born 1950), British educationalist