The 1870 Princeton Tigers football team represented the College of New Jersey, then more commonly known as Princeton College, in the 1870 college football season. The team finished with a 1–0 record and was retroactively named the consensus national champion by the Billingsley Report, National Championship Foundation, and Parke H. Davis. The Tigers played Rutgers one time and won 6–2. Alexander Van Rensselaer was the team's captain.