The 2005 Columbia Lions football team was an American football team that represented Columbia University during the 2005 NCAA Division I-AA football season. Columbia finished last in the Ivy League.

In their third and final season under head coach Bob Shoop, the Lions compiled a 2–8 record and were outscored 337 to 116. Bill Beechum, Prosper Nwokocha and Joe Winters were the team captains.^[1]

The Lions' winless (0–7) conference record placed eighth in the Ivy League standings. Columbia was outscored 293 to 63 by Ivy opponents.^[2]

Columbia played its homes games at Lawrence A. Wien Stadium in Upper Manhattan, in New York City.

Date	Opponent	Site	Result	Attendance	Source
September 17	at Fordham*	Coffey Field Bronx, NY (Liberty Cup)	W 23–17	6,912	[3]
September 24	Duquesne*	Wien Stadium New York, NY	W 23–13	3,511	[4]
October 1	at Princeton	Princeton Stadium Princeton, NJ	L 3–43	8,835	[5]
October 8	at Lafayette*	Fisher Field Easton, PA	L 7–14	1,500	[6]
October 15	Penn	Wien Stadium New York, NY	L 16–44	10,131	[7]
October 22	at Dartmouth	Memorial Field Hanover, NH	L 6–17	6,222	[8]
October 29	Yale	Wien Stadium New York, NY	L 3–37	2,025	[9]
November 5	Harvard	Wien Stadium New York, NY	L 7–55	2,354	[10]
November 12	at Cornell	Schoellkopf Field Ithaca, NY (rivalry)	L 7–45	4,727	[11]
November 19	No. 18 Brown	Wien Stadium New York, NY	L 21–52	6,705	[12]
*Non-conference game Homecoming Rankings from The Sports Network Poll released prior to the game

^[13][14][15]