Susan Harrison (1948 – 14 April 2013) was a Canadian writer and artist who published under the name A. S. A. Harrison. She lived in Toronto and was married to visual artist John Massey. Harrison made a name for herself with performance art in the late 1960s, collaborating with Margaret Dragu. She worked as a typesetter for Toronto publications, and published several works of non-fiction. Her only novel, The Silent Wife, published in June 2013, was met with positive reviews.