Christine M. Korsgaard is an American philosopher whose main academic interests are in moral philosophy and its history; the relation of issues in moral philosophy to issues in metaphysics, the philosophy of mind, and the theory of personal identity; the theory of personal relationships; and in normativity in general. She has taught at Yale, the University of California at Santa Barbara, and the University of Chicago; since 1991 she has been a professor at Harvard University. Korsgaard received a B.A. from the University of Illinois and a Ph.D from Harvard where she was a student of John Rawls.