According to the 2010 College Football Data Warehouse (see below), Bear Bryant of Alabama has the most, with 6. Next are Bernie Bierman of Minnesota with 5, then Frank Leahy of Notre Dame and Robert Neyland of Tennessee with 4 each. Barry Switzer and Bud Wilkinson, both of Oklahoma, and John McKay of USC have 3 each. 12 coaches have two national championships each. Eleven of these two-championship coaches have won both at the same school. These are: Blaik of Army, Parsegian of Notre Dame, Devaney of Nebraska, Bowden of FSU, Royal of Texas, Erickson of Miami, Paterno of Penn State, Hayes of Ohio State, Osborne of Nebraska, Carroll of USC, and Meyer of Florida.
The College Football Data Warehouse (CFBDW) is an online database that has collected and researched information on college football and national championship selections. It provides a comprehensive inventory of national championship selectors and has itself recognized selectors that it has deemed to be the most acceptable throughout history: the National Championship Foundation, the Helms Athletic Foundation, the College Football Researchers Association, the Associated Press Poll, and the Coaches Poll.
Larry Kehres, of Mount Union College, Division III, with 9 national championships.
John Wooden - (10)
Urban Meyer (2006 & 2008)
Ohio states coach
Paul Brown was an American Football coach. He was the coach in the All-America Football Conference and National Football League.His teams won seven league championships.
Charlie Weis, tied with many others: zero.
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.)