He is an American analytic philosopher, the John A. O'Brien Professor of Philosophy Emeritus at the University of Notre Dame and the inaugural holder of the Jellema Chair in Philosophy at Calvin College.
Plantinga is widely known for his work in philosophy of religion, epistemology, metaphysics and Christian apologetics.
He has delivered the Gifford Lectures three times and was described by TIME magazine as "America's leading orthodox Protestant philosopher of God"
Plantinga is the current winner of the Templeton Prize.