The Apostle is a spy thriller novel written by New York Times Bestselling author Brad Thor.

The Apostle follows the character of Scot Harvath as he is sent on a top secret assignment for the United States government to rescue Julia Gallo, a kidnapped American doctor.

For her to be released, the ransom is the freeing of al-Qaeda member Mustafa Khan from Policharki Prison.

Critical reception for The Apostle has been mixed to positive, with Publishers Weekly calling the book "less than convincing".

[2] Booklist wrote that one of the subplots "seems to be from a completely different book distracts a bit, but the main story line will keep fans of action-driven thrillers reading.