Lieutenant-General Alexander Irvine or Irwin (died 1752) was a British Army officer.
On 1 October 1689 he entered the Army as an ensign in the 2nd Battalion of the Royal Regiment of Foot.
[1] He was made adjutant of the 1st Battalion on 22 May 1694[2] and promoted to captain on 2 October 1695, when serving with the regiment before Namur;[3] his commission was renewed in 1702.
[4] Irwin served as a brigade-major at the Battle of Blenheim, where he was again wounded, and was later present at Ramillies and Malplaquet.
[6] On 27 June 1737, after nearly forty-eight years' service in various parts of Europe, Irwin was appointed colonel of the 5th Regiment of Foot,[7] and following promotion to brigadier-general on 1 January 1743[5] and major-general on 24 February 1744,[7] he held important commands on the staff in Ireland,[8] where he was also Lieutenant-Governor of Kinsale.