David Ray Griffin (Wilbur, Washington, born August 8, 1939) is a retired American professor of philosophy of religion and theology, and a political writer. Along with John B. Cobb, Jr., he founded the Center for Process Studies in 1973, a research center of Claremont School of Theology which seeks to promote the common good by means of the relational approach found in process thought. Griffin has published a number of books on the subject of the September 11 attacks, suggesting that there was a conspiracy involving some elements of the United States government.