Alexander Steuart PRSSA FRSE (1884 – 1960) was a 20th century Scottish inventor and horologist.
He was born in Broxburn, West Lothian on 12 September 1884, the son of Daniel Rankin Steuart and his wife Margaret Osborne.
He was then apprenticed as an electrical engineer at King & Co on Prince Regent Street in Leith.
In 1938 he succeeded Alexander Robert Horne as President of the Royal Scottish Society of Arts.
[3] He died on 11 September 1960 at the Western General Hospital in Edinburgh, the day before his 76th birthday.