Grand Valley Institution for Women (GVI; French: Établissement pour femmes Grand Valley) is a women's prison in Kitchener, Ontario, operated by the Correctional Service of Canada (CSC). In Canada, all offenders sentenced to prison terms of greater than two years serve their time in a federal institution operated by the CSC. The Grand Valley Institution, which had a reported capacity of approximately 130 women as of April 2010, is the only federal women's prison in Ontario.