It depends on what you use for the selector. Major College/D1A/FBS teams have never had an official National Champion. (assuming you mean the before mentioned divisions). See the related link below.
The Michigan Wolverines have won a total of 11 national championships in college football. Their titles were claimed in various years, with the most recent one being in 1997. In addition to football, Michigan has also had success in other sports, but the 11 national titles specifically refer to their football achievements.
In Football it is Princeton with 28 titles. In Basketball it is UCLA with 11 titles.
As of October 2023, the University of Alabama's football program claims 18 national championships. These titles span various years, with the most recent championship won in the 2020 season. Alabama is recognized as one of the most successful programs in college football history.
116 national championships since 1895 in football. However most teams don't count their national championship pre ww2!
Paul "Bear" Bryant for Alabama.
Princton
Alabama
According to wikipedia. Princeton has the most titles with 28.
usc has 20 jk
The University of Alabama Crimson Tide
Alabama
Miami
in college football- 7 most recently in 2000
Alabama
The University of Michigan football team claims a total of 11 national championships, with the titles spanning several decades, with the most recent championship win in 1997. These titles are based on various polls and rankings, as the official NCAA does not award championships in football. Michigan is recognized as one of the most successful programs in college football history.
SEC
Bear Bryant, Alabama