Field Marshal John Campbell, 5th Duke of Argyll (June 1723 – 24 May 1806), styled Marquess of Lorne from 1761 to 1770, was a Scottish soldier and nobleman.

[2] He went on to see action under Lieutenant General Henry Hawley at the Battle of Falkirk Muir where the British cavalry was completely routed in January 1746.

[2] He took the courtesy title of Marquess of Lorne, and stood down from the House of Commons on his disqualification from representing a Scottish seat, when his father became 4th Duke of Argyll on 15 April 1761.

[4] Campbell stood down from the House of Commons again when, on the formation of the Chatham Ministry, he was created Baron Sundridge in the Peerage of the United Kingdom in November 1766.

[4] He was appointed Commander-in-Chief, Scotland in 1767, succeeded his father as 5th Duke of Argyll in November 1770 and was promoted to full general on 24 March 1778.