2005 Colgate Raiders football team

The 2005 Colgate Raiders football team was an American football team that represented Colgate University during the 2005 NCAA Division I-AA football season. Colgate won the Patriot League co-championship but lost in the first round of the NCAA Division I-AA national playoffs.
In its 10th season under head coach Dick Biddle, the team compiled a 8–4 record. Jared Nepa and Mike Saraceno were the team captains.
The Raiders outscored opponents 283 to 245. Colgate's 5–1 conference record tied with [2005 2005 Lafayette Leopards football team|Lafayette Leopards football team|Lafayette] for first in the Patriot League standings. Colgate was awarded the Patriot League's automatic berth in the national playoffs, though co-champion Lafayette also participated, as an at-large selection. Both teams lost their first-round games.
Throughout the regular season, Colgate was unranked in the Division I-AA national top 25. Just before the start of the playoffs, the Raiders entered the poll at No. 24. In the year-end rankings, they rose to No. 23.
Colgate played its home games at Andy Kerr Stadium in Hamilton, New York.