The Polizia Penitenziaria, formally the Corpo di Polizia Penitenziaria, is a law enforcement agency in Italy which is subordinate to the Italian Ministry of Justice and operates the Italian prison system as corrections officers. Vatican City, an independent state, does not have a prison system, so the Vatican sends convicted criminals to the Italian prison system.

Law enforcement in Italy is centralized on a national level, carried out by multiple national forces, helped by few limited local agencies. The Italian law enforcement system is considered complex, with multiple police forces and other agencies taking part in different duties. Policing in the Italian system refers to the duties of "full-powered officers" coming from the four national main forces: Polizia di Stato, Carabinieri, Polizia Penitenziaria and Guardia di Finanza. While the duties of these four corps' include investigating and arresting, other local forces carry out limited duties.