The Minnesota Correction Facility – Stillwater (MCF-STW) is a close custody (level 4) state prison for men in Bayport, Minnesota, United States. Built 1910–1914, it houses 1,600 inmates in seven different living areas. Additionally, approximately 100 inmates are housed in a nearby minimum security area. It replaced the original Minnesota Territorial Prison located just to the north in the city of Stillwater, Minnesota.