Deborah Jane Marti (born 14 May 1968) is a former high jumper from England, who was born in Switzerland. She represented Great Britain at the Olympic Games in Barcelona 1992 and Atlanta 1996, finishing ninth in the 1992 final. She set her outdoor personal best of 1.94 metres, on 9 June 1996 at a meet in Tallinn. On 23 February 1997 in Birmingham, she cleared 1.95 metres to set a British indoor record, which stood for 17 years (1997–2014). She also won bronze medals at the 1983 European Junior Championships and the 1994 Commonwealth Games.