Richard D. McKirahan Jr. is an American philosopher and Edwin Clarence Norton Professor of Classics and Professor of Philosophy at Pomona College in Claremont, California. He is known for his works on Pre-Socratics.
McKirahan attended the University of California, Berkeley and the University of Oxford as a Marshall Scholar before completing his doctorate at Harvard University.
McKirahan began teaching at Pomona in 1987. He is the president of the Society for Ancient Greek Philosophy, a position he has held since 2012.