2011 Amherst Lord Jeffs football team

The 2011 Amherst Lord Jeffs football team was an American football team that represented Amherst College as a member of the New England Small College Athletic Conference (NESCAC) during the 2011 NCAA Division III football season. In their 15th year under head coach E. J. Mills, the Lord Jeffs compiled an 8–0 record, won the NESCAC championship, and outscored opponents by a total of 239 to 101.

The 2011 season was one of seven perfect seasons in the history of Amherst's football program, the others coming in 1942, 1964, 1984, 2009, 2014, and 2015.

The team played its home games at Pratt Field in Amherst, Massachusetts.