Clinton Correctional Facility is a New York State Department of Corrections and Community Supervision maximum security state prison for men located in the Village of Dannemora, New York. The prison is sometimes colloquially referred to as Dannemora, although its name is derived from its location in Clinton County, New York. The southern perimeter wall of the prison borders New York State Route 374. Church of St. Dismas, the Good Thief, a church built by inmates, is located within the walls. The prison is sometimes referred to as New York's Little Siberia, due to the cold winters in Dannemora and the isolation of the upstate area. It is the largest maximum-security prison and the third-oldest prison in New York. The staff includes about 1,000 officers and supervisors.

A prison, also known as a jail, gaol, penitentiary, detention center, correction center, correctional facility, or remand center, is a facility where people are confined against their will and denied a variety of freedoms under the authority of the state, generally as punishment for various crimes. Authorities most commonly use prisons within a criminal-justice system: people charged with crimes may be imprisoned until their trial; those who have pled or been found guilty of crimes at trial may be sentenced to a specified period of imprisonment.