Michael Tooley is an American philosopher at the University of Colorado, Boulder. He has a BA from the University of Toronto and earned his Ph.D. in philosophy at Princeton University in 1968. He taught at Stanford University and the Australian National University and, since 1992, at the University of Colorado Boulder.
He has worked on philosophy of science, philosophy of religion, causality and metaphysical naturalism, and has debated the existence of God with William Lane Craig. His paper "Abortion and Infanticide" has been controversial.