|Location||Green Bay, Wisconsin, U.S.|
|Capacity||749 males (operating)|
|Population||1,008 males (as of 08/14/2020)|
|Opened||August 31, 1898|
|Managed by||Wisconsin Department of Corrections|
Wisconsin State Reformatory
|Location||SE corner of Riverside Dr. and SR 172, Allouez, Wisconsin|
|Area||29 acres (11.7 ha)|
|Architect||Ferry & Clas|
|Architectural style||Italianate, Romanesque|
|NRHP reference No.||90000641|
Green Bay Correctional Institution (GBCI) is an adult male maximum-security correctional facility operated by the Wisconsin Department of Corrections Division of Adult Institutions in Allouez, Wisconsin. The prison is located along the east bank of the Fox River.
The prison was originally known as the "Wisconsin State Reformatory" (WSR). In 1972, WSR became an adult male, maximum-security prison. The name was changed to the Green Bay Correctional Institution on July 1, 1979.
The prison was listed on the National Register of Historic Places as the "Wisconsin State Reformatory" in 1990.
In 2022, the United States Court of Appeals for the Seventh Circuit involked the Religious Land Use and Institutionalized Persons Act in its ruling that the rights of a Muslim prisoner at Green Bay Correctional Institution were unlawfully violated when he was strip searched by a transgender male guard.
- COVID-19 outbreak at Green Bay prison rises to 185 cases, DOC says (Report). Wisconsin State Journal.
- "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- Annual Report Fiscal Year 2015 (PDF) (Report). Green Bay Correctional Institution. Archived from the original (PDF) on 30 October 2015. Retrieved 10 March 2016.
- Vielmetti, Bruce (September 20, 2022). "Court: Prison must exempt Muslim inmate from strip search by transgender guards". Milwaukee Journal Sentinel.