James Milner Phillips (1 July 1905, (Chelmsford) - December 1974 (Stow on the Wold)) was an English automotive engineer and businessman. He was managing director of Motor Panels Ltd, a major producer of steel bodywork for the UK car industry. He also supervised the building, testing and world land speed record attempts of Donald Campbell's Bluebird-Proteus CN7 which on 17 July 1964 became the fastest four-wheeled vehicle in the world.