Horsens Statsfængsel (Horsens State Prison), formerly called Horsens Straffeanstalt (Horsens Correctional Institution), is a former prison in Horsens, Denmark. Today it is a crime and prison museum under the name Horsens Prison Museum (Fængselsmuseet), a conference and business facility, and a concert venue where bands such as Metallica have played. Following expansions in 2016, it is the largest prison museum in the world. It won the 2015 InAVation award as best visitors attraction and the 2016 Museums + Heritage award as best foreign (non-British) museum.