Sir Alexander Murray, 3rd Baronet

Sir Alexander Murray, 3rd Baronet (after 1684 – 18 May 1743) was a Scottish baronet and politician. He was a son of Sir David Murray (1659–1729) and his first wife, Anne Bruce. Arms of Murray of Stanhope: 1 and 4. Argent, a hunting horn sable, garnished gules; on a chief azure three mullets of the field. 2. Azure, three fraises argent. 3. Argent, on a chief gules three cushions or.

Alexander Murray was the Member of Parliament (MP) for Peeblesshire from 1710 to 1713.

In 1735, Murray wrote a whimsical proposal for the economic development of the island of St. Kilda.

In 1740, he published a collection of discussion documents, with the overall title The True Interest of Great Britain, Ireland and our Plantations: or, a Proposal for Making such a Union between Great Britain and Ireland, and all our Plantations, as that already made betwixt Scotland and England. etc.

In fiction Sir Alexander Murray of Stanhope features as a character in Andrew Drummond's fantasy novel The Books of the Incarceration of the Lady Grange (2016).