Downstate Correctional Facility was a maximum-security prison in the Town of Fishkill in the Hudson Valley region of New York.

Downstate was right across Interstate 84 from New York state's former psychiatric hospital, which since 1976 has been known as Fishkill Correctional Facility, a multi-level security prison.

[2] On March 10, 2022, Downstate Correctional Facility was permanently closed, due to a declining prison population in New York state.

The "permanent" prisoners—those who worked in the kitchens, laundry, etc., which those in transit could not do—were referred to as the "cadre" and were all maximum-security prisoners, with sentences of at minimum seven years.

Services such as reception, clothes, pharmacy, medical, commissary, chapel, mail, packages, visiting, and cafeteria were all centrally located, but there were small libraries in each of the wings.