Most college football national championships?
Which schools has won the most division 1A team national championships and overall team and individual national championships?
Larry Kehres, of Mount Union College, Division III, with 10 national championships. (If you meant Division I-FBS, the answer is Paul "Bear" Bryant, no matter how you slice it. So please don't clutter this answer with a bunch of also-rans who came CLOSE to having as many as Bryant. The Bear is the King.)