Mario De Caro (born 1963) is an Italian philosopher, professor of moral philosophy at the University of Rome III in Italy. Since 2000, he has also been teaching at Tufts University, where he is regularly a visiting professor. He is interested in moral philosophy, the free-will controversy, theory of action, history of science, Donald Davidson's and Hilary Putnam's philosophies, and early modern philosophy. With David Macarthur, he has defended a metaphilosohical view called liberal naturalism.[1][2]