| Cajamarca | |
| Native Name: | Departamento de Cajamarca (Spanish) Kashamarka suyu (Quechua) |
| Settlement Type: | Department |
| Anthem: | Anthem of Cajamarca Region |
| Coordinates: | -6.61°N -78.78°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Peru |
| Subdivision Type1: | Subdivisions |
| Subdivision Name1: | 13 provinces and 127 districts |
| Subdivision Type3: | Largest city |
| Subdivision Name3: | Cajamarca |
| Seat Type: | Capital |
| Seat: | Cajamarca |
| Leader Title: | Governor |
| Leader Name: | Roger Guevara (2023–present) |
| Unit Pref: | Metric |
| Area Total Km2: | 33317.54 |
| Elevation Footnotes: | (Capital) |
| Elevation Max M: | 4496 |
| Elevation Min M: | 420 |
| Population Total: | 1341012 |
| Population As Of: | 2017 |
| Population Density Km2: | auto |
| Postal Code Type: | UBIGEO |
| Postal Code: | 06 |
| Area Code Type: | Dialing code |
| Area Code: | 076 |
| Iso Code: | PE-CAJ |
| Website: | www.regioncajamarca.gob.pe |
Cajamarca (pronounced as /es/; Quechua: Kashamarka; Aymara: Qajamarka) is a department and region in Peru. The capital is the city of Cajamarca. It is located in the north part of the country and shares a border with Ecuador. The city has an elevation of 2700m (8,900feet) above sea level in the Andes Mountain Range, the longest mountain range in the world. Part of its territory includes the Amazon Rainforest, the largest in the world.
The oldest known irrigation canals in the Americas are located in the Nanchoc District of Cajamarca Department. The canals in the Zaña Valley have been radiocarbon dated to 3400 BCE, and possibly date to 4700 BCE.[1] From the 6th to the 10th century the people of the Wari culture ruled earlier cultures in the highlands. They established the administrative center of Wiraquchapampa.
In the 15th century, the Incas conquered the territory, expanding their empire. They established their regional capital in what is now Cajamarca. The Incas in 1465 established a new province there to serve as a bridge to their later conquests.
Cajamarca had long been one of the oldest cities in South America when the Spanish arrived in their conquest of Peru.
The Region is divided into 13 provinces.
Province (Capital)