The Rt Hon. Arthur Kenlis Maxwell, 11th Baron Farnham, DSO (2 October 1879 – 5 February 1957), was a British Army officer, an Irish Representative peer and a Nova Scotia baronet. He was the son of the 10th Baron Farnham and Lady Florence Jane Taylour, a daughter of the 3rd Marquess of Headfort. On his father's death in November 1900, he succeeded as the 11th Baron Farnham (and 14th in the family Baronetcy) and inherited the Farnham Estate, County Cavan.