Diego de Almagro () is a city and commune in the Chañaral Province of the Atacama Region in Chile. The commune has a population of 11,397 in an area of .

Various mines and mineral prospects lie in the commune including the copper mines of Esperanza and El Salvador and the polymetallic Santo Domingo project.

Name The area is named after Diego de Almagro, a conquistador.

Until 1977, the city was named Pueblo Hundido ("Sunk Town").

Demographics As of the 2024 census, the population is 11,397, of which 49.8% are male and 50.2% are female. People under 15 years old make up 21.2% of the population, and people over 65 years old make up 10.3%. 94.8% of the population is urban and 5.2% is rural.

Immigration As of the 2024 census, immigrants make up 6.4% of the population - 5.7% are from South America, 0.6% from North America, 0.04% from Europe, and 0.01% from Oceania.

Administration As a commune, Diego de Almagro is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde (mayor) who is directly elected every four years.

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