Greg Koukl

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Founder | President — Stand to Reason

Greg started out thinking he was too smart to become a Christian and ended up giving his life for the defense of the Christian faith. A central theme of Greg's speaking and writing is that Christianity can compete in the marketplace of ideas when it's properly understood and properly articulated. Greg's teaching has been featured on Focus on the Family radio, he’s been interviewed for CBN and the BBC, he’s debated atheist Michael Shermer on Hugh Hewitt’s national radio show, and did a one-hour national television debate with Deepak Chopra on Lee Strobel's “Faith Under Fire.” Greg has been quoted in U.S. News & World Report and the L.A. Times. An award-winning writer, Greg has written or contributed to 14 books, including Tactics—A Game Plan for Discussing Your Christian Convictions, Relativism: Feet Firmly Planted in Mid-Air with Francis J. Beckwith, and Precious Unborn Human Persons. Greg has published nearly 200 articles and has spoken on 70 college and university campuses both in the U.S. and abroad. Greg received his Masters in Philosophy of Religion and Ethics at Talbot School of Theology, graduating with high honors, and his Masters in Christian Apologetics with honors from Simon Greenleaf University. He is an adjunct professor in Christian apologetics at Biola University. He’s hosted his own radio talk show for over 25 years advocating clear-thinking Christianity and defending the Christian worldview.

SHOW MATERIALS

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Street Smarts Study Guide: Using Questions to Answer Christianity's Toughest Challenges

Building on Street Smarts, this study guide by Gregory Koukl will take you deeper, teaching you the strategies for productive conversations with those...

Featured on: Monday, November 6, 2023

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Street Smarts: Using Questions to Answer Christianity's Toughest Challenges

Street Smarts equips Christians to handle tough challenges in a straightforward and user-friendly way. It provides the practical tools they need to ke...

Featured on: Wednesday, August 2, 2023

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Tactics, 10th Anniversary Edition: A Game Plan for Discussing Your Christian Convictions

This expanded anniversary edition includes updates and expansions of existing tactics, as well as the addition of an all-new tactic and a chapter on M...

Featured on: Thursday, September 23, 2021

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When Spiritual Heroes Fall

It’s hard to imagine anything so unsettling as learning that a spiritual hero has been living a secret life of egregious sin. Stunned, shocked, and sh...

Featured on: Monday, March 15, 2021

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Tactics: A Game Plan for Discussing Your Christian Convictions

In Tactics, Gregory Koukl demonstrates how to artfully regain control of conversations, keeping them moving forward in constructive ways through thoug...

Featured on: Monday, December 2, 2019

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The Story of Reality: How the World Began, How It Ends, and Everything Important that Happens in Between

Biblical Christianity is more than just another private religious view. It’s more than just a personal relationship with God or a source of moral teac...

Featured on: Monday, June 10, 2019

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Viewpoints

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August 10, 2026

Kerby Anderson

Apologetics Dinner

Louis Markos invites you to a dinner party in his new book. Over the years this professor at Houston Christian University has invited international students and American students to a dinner. He has c...

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August 7, 2026

Penna Dexter

Flyaway Zone

Since retiring from pulpit ministry 10 years ago, Anglican priest David Roseberry has found creative and practical ways to encourage leaders in his denomination and help them grow their churches and e...

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August 7, 2026

Kerby Anderson

Transgender Common Sense

Common sense is surfacing in many of the policies and programs associated with transgenderism. One illustration can be found in a recent article about “The Long March Out of the Gender Clinics.” The a...

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