Sarah Harmer (born on 12 November 1970 in Burlington, Ontario) is a Canadian singer-songwriter.
Harmer gained her first exposure to the musician's lifestyle as a teenager, when her older sister Mary started taking her to concerts by the then-unknown Tragically Hip. At the age of 17, she was invited to join a Toronto band, The Saddletramps. For three years, she juggled The Saddletramps with her studies in philosophy and women's studies at Queen's University.