Harry Grey was an American writer.
Harry Grey may also refer to: Harry Grey, 3rd Earl of Stamford (1685–1739), English peer Harry Grey, 4th Earl of Stamford (1715–1768), English peer Harry Grey, 8th Earl of Stamford (1812–1890), English peer Harry George Grey, English missionary and theologian
See also Harry Gray (disambiguation) Henry Grey (disambiguation) Harold Grey (born 1971), boxer