Chacabuco is one of the many abandoned nitrate or "saltpeter" towns ("oficinas salitreras" in Spanish) in the Atacama Desert of northern Chile. Other nitrate towns of the Atacama Desert include Humberstone and Santa Laura Saltpeter Works. Unlike most of the other ghost towns in the Atacama Desert, Chacabuco became a concentration camp during the Pinochet regime in 1973. To this day, it remains surrounded by approximately 98 lost landmines, left by the Chilean military when Chacabuco was used as a prison camp.
The Battle of Chacabuco was a decisive victory fought by Chilean and Argentine forces against the Spanish forces in Chile during the Chilean War of Independence in 1817. The name Chacabuco may refer to:
- Chacabuco Valley, the origin of the name
- Chacabuco Cuesta, a Mountain pass through the Chilean Coast Range (Cordillera de la Costa)
- Chacabuco is an abandoned nitrate or "saltpeter" town in the Atacama Desert of northern Chile.
- Chacabuco Province is a Province in central Chile.
- Puerto Chacabuco is a town in Chile.
- Chacabuco River is a river in Chile.
- Chilean corvette Chacabuco (1815) was a ship of the First Chilean Navy Squadron
- Chilean corvette Chacabuco (1866) fought in the War of the Pacific
- Chilean cruiser Chacabuco (1898) was a cruiser in service with the Chilean Navy through World War I and World War II.
- Chilean cruiser Chacabuco (1937) was the last name of the USS Nashville, then Chilean cruiser Capitán Prat (CL-03)
- Chacabuco, Buenos Aires is a city in Buenos Aires Province, Argentina.
- Chacabuco Partido is a political division in Buenos Aires Province, Argentina.
- Chacabuco Department, San Luis is a political division in San Luis Province, Argentina.
- Chacabuco Department, Chaco is a political division in Chaco Province, Argentina.
- Parque Chacabuco is a neighborhood in the city of Buenos Aires, Argentina.
- Chacabuco Park is a city park in Buenos Aires, Argentina.