Peter Hawthorn Ashdown is a former motor racing driver. He drove in a single Formula One World Championship Grand Prix, racing a Cooper.
Prior to Formula One, he was one of the leaders of the British Formula Junior scene, but an accident at Rouen-Les-Essarts in 1958, in which he broke his collarbone, considerably hampered his career. He continued racing in a Formula Two Cooper-Climax entered by Alan Brown at the 1959 British Grand Prix at Aintree. From there he drove a Formula Junior Lola and many small-engined sports cars, winning his class in the 1960 and 1962 1000km Nürburgring. He retired in 1962.