Margo Todd (born July 24, 1950) is an American historian.
Todd obtained an undergraduate degree from Tufts University and attended the Washington University in St. Louis, where she earned a master's degree and doctorate.
Todd joined the Vanderbilt University faculty. In 2003, Todd began teaching at the University of Pennsylvania as the Walter H. Annenberg Professor of History. Todd was awarded a Guggenheim fellowship in 2004.