La Libertad (Spanish pronunciation: [la liβeɾˈtað]; in English: The Liberty) is a department and region in northwestern Peru. Formerly it was known as the Department of La Libertad (Departamento de La Libertad). It is bordered by the Lambayeque, Cajamarca and Amazonas regions on the north, the San Martín Region on the east, the Ancash and Huánuco regions on the south and the Pacific Ocean on the west. 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 and fighting for that. It is the ninth smallest department in Peru, but it is also its second-most populous department after Piura and its second-most densely populated department after Lambayeque.

This section does not cite any sources. (January 2023)

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]}

The Region is separated into 12 provinces (provincias), political divisions that generally correspond to counties in the United States of America. A Peruvian Region has as its head political executive a governor (governador), an elected official. The head political executive of each province is a lieutenant governor (teniente governador), an official appointed by the governor. These 12 provinces comprise a total of 80 districts (distritos). The provinces, with their capitals are:

The coastal strip set the stage for the rise of many pre-Columbian cultures, such as the pre-Ceramic Huaca Prieta civilization, which is more than 5,000 years old & the Cupisnique, which is more than 3,000 years old. From 200 A.C., the first one to expand beyond its cradle was the Moche or Mochica culture. It was basically an agriculture and/or a warrior culture, which built countless temples and palaces such as the Sol (Sun), Luna (Moon), El Brujo & Cao Viejo, and other huacas. The Chimú culture emerged later and built its capital in Chan Chan, the largest pre-Columbian city in South America, & huacas like Esmeralda & Arco Iris (Rainbow). At its zenith, Chan Chan was home to 60,000 inhabitants who stubbornly resisted the expansion of the Inca Empire. These ancient cultures used irrigation canals and water reservoirs, which systems were increasingly better engineered and extensive over the years. The technological acumen of these sophisticated agricultural systems was carried into the Inca Empire, which surrounded the remnants of the prior cultures. The Spanish colonizers destroyed most of the agricultural works to more effectively establish political control and provide de facto slave labor from the displaced native agriculturalists.

The archaeological remains of Chan Chan, 6 km (3.7 mi) northeast of downtown Trujillo, are rather well-preserved despite being built out of adobe (mud bricks), largely because 1) dearth of rainfall and consequent erosion, and 2) lack of significant re-use of its construction materials (adobes do not respond easily to removal and transport and are relatively cheap to make on-site in current methods of construction).

During the Late Moche phase (AD 600 to 850), one of the largest power centers of the region was the fortified site of Cerro Chepén in the Jequetepeque Valley. It is located 3 km (1.9 mi) to the south of the site of San José de Moro.^[2]

Cerro Chepén has a sophisticated system of fortifications, and a dominant position on top of the hill, with many monumental buildings. Recent excavations at the site revealed that there was much internal conflict there that affected local communities.^[3]

• Calipuy National Sanctuary

The public company for water supply and sanitation in La Libertad Region is SEDALIB which is formed by shareholders of municipalities of the Region.^{[citation needed]}

• Chimú culture
• Moche
• Cupisnique
• Marcahuamachuco
• 1970 Ancash earthquake