Algernon Henry Strutt (6 May 1883 – 20 May 1956) was 3rd Baron Belper from 1914 to 1956.
He entered the British Army in August 1908 and gained the rank of Lieutenant in the service of the 2nd Life Guards. He succeeded to the title of 3rd Baron Belper, of Belper, on 26 July 1914. He held the office of Deputy Lieutenant of Nottinghamshire.
He was the son of Henry Strutt, 2nd Baron Belper and Lady Margaret Coke. He married Eva Isabel Marion Bruce, daughter of Major Henry Campbell Bruce, 2nd Baron Aberdare of Duffryn and Constance Mary Beckett on 26 April 1911 in St. Margaret's, Westminster. The couple were divorced in 1922 after having three children:
Secondly he married Angela Mariota Tollemache, daughter of Hon. Alfred Douglas Tollemache and Alice Mary Head, on 12 July 1923. There were two children from this marriage: