William Lane Craig is an American analytic philosopher and Christian theologian. He is known for his work in the philosophy of religion, philosophy of time, and the defense of Christian theism.

He is notable for reviving interest in the Kalām cosmological argument with his 1979 publication of The Kalām Cosmological Argument, an argument for the existence of God with origins in antiquity and developed by medieval Islamic scholasticism. In theology, he has also defended Molinism and the belief that God is, since Creation, temporal.

Craig has authored or edited over 40 books, including The Cosmological Argument from Plato to Leibniz, Theism, Atheism, and Big Bang Cosmology, God, Time, and Eternity, and Reasonable Faith: Christian Truth and Apologetics.

Craig received a Bachelor of Arts degree in communications from Wheaton College, Illinois, in 1971 and two summa cum laude master’s degrees from Trinity Evangelical Divinity School in Deerfield, Illinois, in 1975, in philosophy of religion and ecclesiastical history. He earned a PhD in philosophy under John Hick at the University of Birmingham, England, in 1977 and a DTheol under Wolfhart Pannenberg at the University of Munich in 1984.

From 1980 to 1986 he was an assistant professor of philosophy at Trinity Evangelical Divinity School. He briefly held the position of associate professor of religious studies at Westmont College in Santa Barbara, California, from 1986 to 1987. From 1987 to 1994 Craig pursued further research at the University of Louvain, Belgium. Since 1994 he has held the position of research professor of philosophy at Talbot School of Theology, Biola University, in La Mirada, California.

Since 2014 he has also served as Professor of Philosophy at Houston Baptist University.  His most recent book is God Over All:  Divine Aseity and the Challenge of Platonism. His God and Abstract Objects is forthcoming with Springer Verlag.