La Libertad (Spanish pronunciation: [la liβeɾˈtað]) is a department of Peru. Located in the country's northwest, it is bordered by the Lambayeque, Cajamarca and Amazonas to the north, San Martín to the east, Áncash and Huánuco to the south and the Pacific Ocean to the west. It is administered by a regional government. Its capital is Trujillo, which is the nation's third biggest city.

The region's main port is Salaverry, one of Peru's largest ports. The name of the region is Spanish for "freedom" or "liberty"; it was named in honor of the Intendancy of Trujillo's proclaiming independence from Spain in 1820. It is the ninth smallest department in Peru, but it is also its second-most populous after Piura and its second-most densely populated department after Lambayeque.

During the viceroyalty of Peru, the La Libertad region, together with the present-day regions of Lambayeque, Piura and Tumbes regions in Peru, and Guayaquil and El Oro Province in Ecuador, were all within the jurisdiction of the Intendancy of Trujillo. These were included in the domain of the city of Trujillo; together they comprised the Departamento de Trujillo of the viceroyalty.

After the intendancy joined the emancipation cause and was the first to gain independence from Spain as the Department of Trujillo, in 1825 the Congress of the Peruvian republic changed the name to Departmento de la Libertad. Since the late 20th century, Peru has decentralized its government. All former Departments in Peru are now called Regions; their governors are elected, and they have more independent authority in decisionmaking.

La Libertad is the only Peruvian region that includes all three natural regions of the nation: coast, Sierra (highlands), and selva (rainforest).

Trujillo, the capital, has a strategic location, near where the Andes come closest to the coast. Seen from Trujillo, the Andes appears as a row of low-elevation hills. The Andean Plateau increases altitude sharply to the east, in the provinces of Otuzco and Santiago de Chuco. These two provinces comprise the Pacific hydrographic watershed, which give rise to the Moche and Virú rivers, to the south, and Chicama River to the north. Pacasmayo Province, located more to the north, is along the coast. To the east, Sánchez Carrión Province waterways drain into the Amazon River and thus belong to the Atlantic Ocean watershed.^{[citation needed]}

La Libertad region is the third-most populous in Peru; the census 2007 recorded 1,617,050 residents, representing 5.9% of the Peruvian population. It was surpassed only by the Department of Lima and Piura. In 2012 its capital Trujillo is the second-most populated metropolitan area in Peru and the largest city in northern Peru. The largest population is concentrated in provincial capitals and districts, which comprise the majority urban population in La Libertad region. The migrant population to the region comes from border departments and immigrants from other countries.

The principal cities in La Libertad region are shown in the next table.