Kym Ruddell (born 19 July 1955) is an Australian former professional tennis player. While competing on tour, Ruddell appeared in every Australian Open from 1974 to 1980. She was most successful in women's doubles, reaching the semifinals twice and the quarterfinals two times. Ruddell was runner-up to Judy Tegart-Dalton at the 1975 Australian Hard Court Championships. She was also a doubles finalist in two WTA Tour level tournaments during her career.