Kay Thomson (born February 18, 1964) is a Canadian former figure skater who competed in ladies' singles. She is the 1981 Prize of Moscow News champion, the 1983 Skate Canada International silver medallist (behind that years Olympic and World Champion Katarina Witt), and a three-time Canadian national champion. Her rise to dominance of Canadian ladies figure skating was unexpected as young phenom Tracy Wainmann had been expected to dominate Canadian ladies skating throughout this quadrennial, and beyond, but Thomson dethroned Wainmann at the 1982 Canadian Championships, and was only challenged by rising future superstar Elizabeth Manley thereafter as Wainmann fell off the map for a few years with personal issues and a growth spurt. She represented Canada at the 1984 Winter Olympics in Sarajevo, placing 12th, and at three World Championships, achieving her best result, fifth, in 1984 (Ottawa). She also finished a strong 6th at both the 82 and 83 worlds. At this event she had perhaps her best shot ever of a world podium finish in a heavily weakened post Olympic field (missing amongst other Rosalynn Sumners, Tiffany Chin, Claudia Leistner, and Elena Vodorezova) and a respectable initial finish in compulsory figures which were never her strength, but a turn between her triple lutz-double toe combination in the short, and a miss on her triple flip in the long, was enough to keep her behind silver medallist Anna Kondrashova, bronze medallist Elaine Zayak, and 4th-place finisher Kira Ivanova.