Potosi Correctional Center (PCC) is a Missouri Department of Corrections prison located in unincorporated Washington County, Missouri, near Mineral Point. The facility currently houses 800 death row, maximum security and high-risk male inmates.

A super-maximum security (supermax) or administrative maximum (ADX) prison is a "control-unit" prison, or a unit within prisons, which represents the most secure level of custody in the prison systems of certain countries.