East Jersey State Prison is a medium-security prison operated by the New Jersey Department of Corrections in Avenel, Woodbridge Township, New Jersey. It was established in 1896 as Rahway State Prison, and was the first reformatory in New Jersey, officially opening in 1901. It housed 1,227 inmates as of 2020.

The New Jersey Department of Corrections (NJDOC) is the government agency responsible for operations and management of prison facilities in the U.S. state of New Jersey. The New Jersey Department of Corrections operates 9 correctional facilities, 11 Residential Community Release Programs, and 1 Assessment Center. The department is headquartered in Trenton.