The 1906 college football season was the first in which the forward pass was permitted. Although there was no clear cut national championship, there were two teams that had won all nine of their games as the 1906 season drew to a close, the Princeton Tigers and the Yale Bulldogs, and on November 17, 1906, they played to a 0–0 tie. St. Louis University finished at 11–0–0. The Helms Athletic Foundation, founded in 1936, declared retroactively that Princeton had been the best college football team of 1906. Other selectors recognized Yale as the national champions for 1906.

The 1906 Yale Bulldogs football team was an American football team that represented Yale University as an independent during the 1906 college football season. The team compiled a 9–0–1 record, shut out nine of ten opponents, and outscored all opponents by a total of 144 to 7. Four Yale players were selected as consensus All-Americans, and the team was selected by multiple selectors as the national champion for 1906.