The 1885 Princeton Tigers football team represented the College of New Jersey, then more commonly known as Princeton College, in the 1885 college football season.

The team finished with a 9–0 record and was retroactively named as national champions by the Billingsley Report, Helms Athletic Foundation, Houlgate System, National Championship Foundation, and Parke H.

Davis.

[1][2] This season marked Princeton's 13th football national championship.

[3] The season was notable for one of the most celebrated football plays of the 19th century—a 90-yard punt return by Henry "Tillie" Lamar in the closing minutes of the game to beat Yale, 6–5, a team Princeton had not defeated since 1878.