Elizabeth Caroline Hamilton Gray (née Johnstone, 1800 – 21 February 1887) was a Scottish historian and travel author, born in Alva, Clackmannanshire, as the eldest daughter of James Raymond Johnstone and granddaughter of the colonial businessman John Johnstone. After marrying John Hamilton Gray, a priest and genealogist, in June 1829, Gray moved to Bolsover Castle in England, where she lived until shortly before her death.