East Jersey State Prison
| Location | 1100 Woodbridge Road Avenel, New Jersey | 
|---|---|
| Coordinates | 40°35′28.7″N 74°16′02.7″W / 40.591306°N 74.267417°W | 
| Status | Open | 
| Security class | Mixed | 
| Capacity | 1227 inmates | 
| Population | 1049 inmates (updated 2025) | 
| Opened | 1901 | 
| Former name | Rahway State Prison | 
| Managed by | New Jersey Department of Corrections | 
East Jersey State Prison (formerly "Rahway State Prison") is a maximum 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. As of 2025 its population is now 1,049