50 Reasons People Give for Believing in a God is a 2008 book by journalist Guy P. Harrison which examines fifty common reasons that believers across the world give for believing in a god or gods.

It examines fifty common reasons that believers across the world give for believing in a god, drawing on his conversations with people while traveling both for business and pleasure in twenty years as a journalist.

[1] Harrison notes that very few people are interested in the complex arguments that go on between theologians and atheists.

[1] Of the fifty reasons, Harrison concludes that the most common reasons people believe are because it is just obvious to them, because everyone is religious so it must be true, or because it brings them happiness.

[1] Harrison describes Richard Dawkins' use of the term "faith heads" to describe believers as "a lot like an insult" and writes that it is "counterproductive.