Alexander Hugh Bruce, 6th Lord Balfour of Burleigh, KT, GCMG, GCVO, PC, JP, DL (13 January 1849 – 6 July 1921) was a Scottish Unionist politician, banker and statesman, who took a leading part in the affairs of the Church of Scotland.

The son of Robert Bruce, at one time Tory Member of Parliament for Clackmannan, he was born in Kennet in that county and educated at Loretto, Eton and Oriel College, Oxford.

In 1916 he was appointed as chairman of the Committee on Commercial and Industrial Policy by Lloyd George and the economisers in the Cabinet in acknowledgement of his free trade credentials.

[5] In July 1902, he received the freedom of the city of St Andrews, ″in testimony of his great services to the Scottish nation in many capacities, and especially of the conspicuous abilities with which he had discharged the onerous duties of Secretary for Scotland, and the deep interest he had shown in the cause of education and in promoting the welfare of the country.″[6] He was appointed a Knight of the Thistle (KT) in March 1901, and invested by King Edward at Marlborough House on 18 March 1901.

Balfour married Lady Katherine Eliza, youngest daughter of the George Hamilton-Gordon, 5th Earl of Aberdeen, in 1876.

After his death the heir to the lordship transferred to his second son, George John Gordon Bruce, 7th Lord Balfour of Burleigh (1883–1967).