Which saint is depicted riding a horse and slaying a dragon? 1. Which saint is pictured riding a horse and slaying a dragon? St. Valentine St. George St. Michael St. Francis of Assisi Loading… Share this:ShareFacebookTwitterPinterestLinkedIn Related Related posts: War Horse, the movie, starred a horse named what? Horse Q of the Day: Breyer Star Horse Q of the Day: Police Horses Horse Q of the Day: 1HP v 800HP?