Karen Cross (born 19 February 1974 in Exeter, Devon) is a left-handed British former tennis player who competed at eight Wimbledon Championships during the 1990s and early 2000s, as well as for the Great Britain Fed Cup team in both 1994 and 1998. During the course of her career Cross managed to win six titles on the ITF circuit (3 in singles and 3 in doubles) and she achieved her highest Women's Tennis Association singles ranking of world number 134 on 22 June, 1998. She is currently a part-time tennis coach at the Roehampton Club and since retirement from the professional circuit she has regularly competed on the ITF senior circuit, reaching a career-high ranking of world no.4 in the women's over-35's age group.
Cross managed to gain victories over a number of players who would go on to achieve (or had already experienced) great success on the WTA tour, the most notable being future two-time Australian Open champion and world number 2 Li Na (in December 1999) and future multiple Grand Slam doubles champion and doubles world number 1, Roberta Vinci (in July 2000). Other notable defeated opponents included future two-time WTA titlist and world number 19 Sybille Bammer, future world number 32 Jelena Kostanić, future one-time WTA titlist and world number 48 Milagros Sequera and former one-time WTA titlist and world number 56, Monique Javer.