The 2009 Liberty Flames football team represented Liberty University in the 2009 NCAA Division I FCS football season a member of the Big South Conference. The Flames were led by fourth-year head coach Danny Rocco and played their home games at Williams Stadium in Lynchburg, Virginia. They finished the season with an overall record of 8–3 and a 5–1 mark in the Big South to share the conference championship with Stony Brook.

The Liberty Flames football program represents Liberty University, a private Christian university located in Lynchburg, Virginia, in college football. The Flames compete in the NCAA Division I Football Bowl Subdivision (FBS) as a member of Conference USA. The program, which previously competed in the Football Championship Subdivision (FCS), announced it would start a transition to the top level of NCAA football in July 2017. The Flames became a provisional FBS member in 2018, and became a full FBS member with bowl eligibility in 2019. In 2020, Liberty entered the rankings in the AP Poll at 25 for the first time in program history.