Richard Boyd (Ph.D. MIT 1970) is an American philosopher who has spent most of his career at Cornell University, though he also taught briefly at Harvard University the University of Michigan, Ann Arbor, and the University of California, Berkeley.
He is well known in philosophy of science circles as a realist. His book The Philosophy of Science (ISBN 0-262-52156-3) is widely used in undergraduate and graduate philosophy courses. He has also made important contributions to the development of Cornell realism, a distinctly naturalistic position in moral philosophy.
Boyd's doctoral thesis, directed by Hilary Putnam, is called "A recursion-theoretic characterization of the ramified analytical hierarchy", and his degree was one of the first Ph.Ds awarded in philosophy by MIT.