Callao Naval Base (Spanish: Base Naval del Callao) is the main naval base of the Peruvian Navy. Located north of the main port of Callao, it is also a high-security prison, where members of terrorist groups such as the Shining Path and the Túpac Amaru Revolutionary Movement (MRTA) are located. The base hosts a dockyard and naval aviation base, as well as the Naval Medical Center, which contains the U.S. Navy's Naval Medical Research Unit Six.

A project to modernise the base started in the northern part of the facility on June 21, 2023.

The naval base was first built in the 1930s as a levee and a naval arsenal. In 1992, then presidential advisor Vladimiro Montesinos proposed the construction of a penitentiary centre in the base, where he himself was confined after he was extradited from Venezuela in June 2001.

• Abimael Guzmán, chairman of the Shining Path
• Víctor Polay Campos, co-founder of the MRTA
• Óscar Ramírez Durand, chairman of the Shining Path
• Vladimiro Montesinos (June 2001 – August 2021), former director of the National Intelligence Service
• Miguel Rincón Rincón [es], leader of the MRTA
• Wilmer Arrieta, member of a criminal organisation
• Florindo Eleuterio Flores Hala, member of the Shining Path

• Port of Callao
• Peruvian Naval School

12°01′59″S 77°08′20″W / 12.033°S 77.139°W / -12.033; -77.139