Gregory Koukl (born June 10, 1950) is a Christian apologist and radio talk show host.
[1] In 1993 Koukl founded Stand to Reason, an organization dedicated to training those supporting his Christian viewpoints to defend their faith with "knowledge, wisdom, and character".
Stand to Reason produces a weekly radio program, audio podcasts, articles, and video materials.
Stand to Reason ended its radio program on KBRT, its flagship station, on 6 December 2015.
Stand to Reason sponsors mission trips in which students encounter those with opposing points of view, including Mormons and atheists.