Constance Barbara Backhouse, CM OOnt FRSC (born February 19, 1952) is a Canadian legal scholar and historian, specializing in gender and race discrimination. She is a Distinguished University Professor and University Research Chair at the Faculty of Law, University of Ottawa in Ottawa, Canada. In addition to her academic publications, Backhouse is the author of several books on feminist- and race-related legal rights topics. Backhouse is President of the American Society for Legal History, and is the first non-US scholar to hold this position.