Port Phillip Prison
| Location | Truganina, Victoria |
|---|---|
| Status | Operational |
| Security class | Maximum (Male) |
| Capacity | 1117, as at 30 June 2019 |
| Opened | September 1997 |
| Managed by | G4S Australia Pty Ltd |
37°49′42″S 144°45′8″E / 37.82833°S 144.75222°E Port Phillip Prison is a maximum security prison located at Truganina, Victoria, Australia. It is Victoria's largest maximum security prison, able to accommodate up to 1117 prisoners. The prison is privately operated on behalf of the Government of Victoria by G4S Australia Pty Ltd. The prison is expected to close in December 2025, with prisoners to be relocated to the Western Plains Correctional Centre in Lara.