The 1906 Princeton Tigers football team represented Princeton University in the 1906 college football season. In their first season under head coach Bill Roper, the team compiled a 9–0–1 record, shut out eight of ten opponents, and outscored all opponents by a total of 205 to 9. Herb Dillon was the team captain. There was no contemporaneous system in 1906 for determining a national champion. However, Princeton was retroactively named as the national champion by the Helms Athletic Foundation and National Championship Foundation.