2009 Amherst Lord Jeffs football team

The 2009 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 2009 NCAA Division III football season. In their 13th 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 162 to 83.

The 2009 season was Amherst's first outright NESCAC championship. It was also one of seven perfect seasons in the history of Amherst's football program, along with 1942, 1964, 1984, 2011, 2014, and 2015.

Key pllayers included quarterback Alex Vetras and linebacker Sam Clark, both of whom received NESCAC player of the week honors during the 2009 season.

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