The Federal Correctional Institution Greenville (FCI Greenville) is a medium-security United States federal prison for male offenders in Illinois, with an adjacent satellite prison camp for minimum-security female offenders.

It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice.

[1] The prison camp was turned into a women's facility in 2000 in order to make more space for women in the north central U.S.[2] In 2001, David Mack, a central figure in the LAPD Rampart Scandal, was attacked by a group of fellow inmates while jogging in the prison recreation yard at FCI Greenville.

The Bureau of Prisons and the FBI refused to confirm that the attack occurred, but Mack's attorney reported that the inmates were gang members who attacked Mack after they saw a television program and read press accounts that detailed Mack's role in stealing from gang members and his connection with fellow officer Rafael Perez, another central figure in the scandal.

Mack was taken to a local hospital and was treated for multiple stab wounds and a punctured lung.