The Prison For Women, located in Kingston, Ontario, was a Correctional Service of Canada prison for women that functioned at a maximum security level from 1934 to 2000. Known for its controversial legacy and significance as Canada's only federal-level penitentiary for women until 2000, the institution housed some of Canada’s most serious female offenders until its decommissioning following years of criticism and scrutiny over inmate treatment. The prison, designed in Neoclassical style by Henry H. Horsey, later became a federal heritage site. Throughout its history, P4W faced ongoing controversies, including inmate abuse, racial discrimination, unethical experiments, and a notorious 1994 riot that led to the influential Arbour Report, eventually prompting significant reforms in the Canadian correctional system.