Alexander Stuart, 5th Lord Blantyre (or Stewart) (died 1704) was a Scottish nobleman, a soldier and politician.
He was the son of Alexander Stewart, 4th Lord Blantyre, by Margaret, daughter of John Shaw of Greenock.
At the Glorious Revolution he raised a regiment for the service of King William, which was at Stirling when Hugh Mackay was encamped at Killiecrankie.
By the seceding members he was sent as a deputy to Anne, Queen of Great Britain, who declined to accept their protest, but permitted Stewart to wait on her.
By his second wife, Anne, daughter of Sir Robert Hamilton, Lord Pressmennan, and sister of John Hamilton, 2nd Lord Belhaven and Stenton, he had five sons and four daughters:[1] This article incorporates text from a publication now in the public domain: Lee, Sidney, ed.