Alister Edgar McGrath (; born 1953) is an Irish theologian, Anglican priest, intellectual historian, scientist, Christian apologist, and public intellectual. He currently holds the Andreas Idreos Professorship in Science and Religion in the Faculty of Theology and Religion, and is a fellow of Harris Manchester College at the University of Oxford, and is Professor of Divinity at Gresham College. He was previously professor of theology, ministry, and education at King's College London and head of the Centre for Theology, Religion and Culture, professor of historical theology at the University of Oxford, and was principal of Wycliffe Hall, Oxford, until 2005. Aside from being a faculty member at Oxford, McGrath has also taught at Cambridge University and is a teaching fellow at Regent College. McGrath holds three doctorates from the University of Oxford: a doctoral degree in molecular biophysics, a Doctor of Divinity degree in theology, and a Doctor of Letters degree in intellectual history. McGrath is noted for his work in historical theology, systematic theology, and the relationship between science and religion, as well as his writings on apologetics. He is also known for his opposition to New Atheism and antireligion and his advocacy of theological critical realism. Among his best-known books are The Twilight of Atheism, The Dawkins Delusion?, Dawkins' God: Genes, Memes, and the Meaning of Life, and A Scientific Theology. He is also the author of a number of popular textbooks on theology.