Karen Paterson is a Scottish ex-professional tennis player who was active between the years 1998 and 2007. She won a total of 2 ITF singles titles and 5 ITF doubles titles, reaching a career-high ranking of world no. 369 in singles and world no. 220 as a doubles player . She coached British junior, Steph Cornish and currently coaches another British player, Jocelyn Rae.
As a singles competitor, she never managed to qualify for any of the four Grand Slams although she did compete in the Wimbledon doubles competition on two occasions in 2006 and 2007. In 2006, she and Rebecca Llewellyn were beaten by the no. 2 seeds, Cara Black and Rennae Stubbs, and in 2007 she and Melanie South lost to Janette Husárová and Meghann Shaughnessy, the no. 7 seeds.