Gerald Joseph Constable Maxwell MC, DFC, AFC, DL (8 September 1895 – 18 December 1959) was a British First World War flying ace credited with twenty-six aerial victories.

[1] Maxwell was born in Beauly near Inverness, Scotland, to the Honourable Bernard Constable-Maxwell (son of William Constable-Maxwell, 10th Lord Herries of Terregles) and the Honourable Alice Fraser (daughter of Simon Fraser, 13th Lord Lovat), both of whom were scions of notable Scottish recusant families.

Maxwell completed final pilot training at Central Flying School, Upavon and joined No.

In scoring the shared victories, he teamed with such other aces as Cecil Lewis, Edric Broadberry, Charles Jeffs, and Cyril Crowe.

[2] Maxwell was a member of the Royal Company of Archers, a Knight of Malta and Privy Chamberlain of the Pope.