Alexander Murray of Elibank (9 December 1712 – 27 February 1778) was the fourth son of and brother of Patrick Murray, 5th Lord Elibank. Horace Walpole said that Murray and his brother were "both such active Jacobites, that if the Pretender had succeeded, they could have produced many witnesses to testify their zeal for him; both so cautious, that no witnesses of actual treason could be produced by the government against them".