The 2009 Penn State Nittany Lions football team represented the Pennsylvania State University in the 2009 college football season. The team was coached by Joe Paterno and played its home games in Beaver Stadium in University Park, Pennsylvania. Penn State had the highest graduation rate among all of the teams on the Associated Press Top 25 poll with 89% of its 2002 enrollees graduating. Miami and Alabama tied for second place with a graduation rate of 75%. The Nittany Lions finished the season with an 11–2 record and won the Lambert-Meadowlands Trophy award to the best team in the ECAC for the 28th time and the second consecutive year.

The 2009 NCAA Division I FBS football season was the highest level of college football competition in the United States organized by the National Collegiate Athletic Association (NCAA).