Susan Estelle Sloan (born April 5, 1958), later known by her married name Susan Kelsey, is a Canadian former competitive swimmer. Sloan won a bronze medal at the 1976 Summer Olympics in Montreal, by swimming the butterfly leg for the third-place Canadian team in the women's 4x100-metre medley relay, together with teammates Wendy Hogg (backstroke), Robin Corsiglia (breaststroke), and Anne Jardin (freestyle). At the 1978 World Championships in Berlin, she and her Canadian teammates won a bronze medal in the 4x100-metre freestyle relay.