Crazy Love: Overwhelmed by a Relentless God is a 2008 New York Times bestselling Christian book written by Francis Chan and published by David C Cook.

In the format of Crazy Love Chan dedicates three sections to renewing understanding around the character of God and seven chapters encourage Christians to examine themselves.

Within the book are two ongoing themes: examine yourself and, controversial to Christian secular culture, live your best life later.

Chan claims that Christianity as described in the Bible reflects an obsessed behavior to become better neighbors, community members, servants, friends, and families by choosing to be humble, dedicated, and ending with loving everyone "as you have been loved.

"[5] Critical reception for Crazy Love has been positive, with Publishers Weekly praising the book.