Cathy Gilliat-Smith (born 19 March 1981 in Sevenoaks, Kent) is an English field hockey player forward. She was selected for the England Women's U21 squad to play in the Junior Nations Cup in 2002 European Junior (Women) Nations Cup in Jaen, Spain. She was a member of the England U21 squad that toured South Africa in early 2001. She made her senior international debut for the England women's national field hockey team in 2002. With the English team at the Eurohockey Nations Championships she won bronze medals twice: in Dublin she in 2005 and in Manchester in 2007. She was also in the squad that won a bronze medal in the 2006 Melbourne Commonwealth Games. She is retired from international hockey.