who has won the most college football championships

The answer depends on how you define “most college football championships”:

All-Time: If you consider all championships ever awarded, then Yale University holds the record with 18 titles. However, these wins occurred mainly in the 19th and early 20th centuries, before the establishment of a standardized ranking system.

Modern Era (AP Poll Era): Since the introduction of the Associated Press (AP) Poll in 1936, the leader is the University of Alabama with 16 national championships. This era offers a more consistent way to compare teams across different times.