Malcolm Mitchell-Thomson, 3rd Baron Selsdon

Malcolm McEacharn Mitchell-Thomson, 3rd Baron Selsdon (27 October 1937 – 15 September 2024) was a British peer, banker and businessman. He sat in the House of Lords from 1963 to 2021, having been elected as one of the 90 hereditary peers who retained their seats after the passing of the House of Lords Act 1999.

Background The son of Patrick William Malcolm Mitchell-Thomson, 2nd Baron Selsdon (1913−1963), and his first wife, Phoebette Swithinbank (d. 1991), Selsdon was educated at Winchester College. He served in the Royal Navy from 1956 to 1958, reaching the rank of sub-lieutenant in the Royal Naval Reserve.

Parliamentary career Having succeeded his father as Baron Selsdon at the age of 25, he took his seat in the House of Lords on 30 July 1963. He made his maiden speech on 9 December 1970 in a debate entitled Pollution and Protection of the Environment. His next speech was in a debate on the EEC: British entry negotiations on 19 January 1971. In his third speech he seconded the Address in Reply to Her Majesty's Most Gracious Speech by Lady Macleod of Borve (widow of Iain Macleod) on 2 November 1971, an honour given him after he caught the eye of fellow Wykehamist and EEC enthusiast Lord Jellicoe, Leader of the House of Lords.