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.

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

[2] 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.