The Chilean Antarctic Territory (Spanish: Territorio Antártico Chileno) is the territory in Antarctica claimed by Chile. The Chilean Antarctic Territory ranges from 53°W to 90°W and from the South Pole to 60°S, partially overlapping Argentine and British Antarctic claims. It is administered by the Cabo de Hornos municipality in the South American mainland.
Within Chilean territorial organization Antártica is name of the commune that administers the territory. The comune of Antártica is managed by the municipality of Cabo de Hornos with seat in Puerto Williams in southernmost Chile and belongs to Antártica Chilena Province, which is part of Magallanes and Antártica Chilena Region. The commune of Antártica was created on July 11, 1961, and was dependent on the Magallanes Province until 1975, when the Antártica Chilena Province was created, making it dependent administratively on Puerto Williams, the province capital.
Antártica is a Chilean commune in Antártica Chilena Province, Magallanes and Antártica Chilena Region, which covers all of the Territorio Chileno Antártico—the territory in Antarctica claimed by Chile. It ranges from 53°W to 90°W and from the South Pole to 60°S, overlapping the Argentine and British Antarctic claims, and is the largest commune in Chile, being over 25 times the size of the next largest commune, Natales. It is administered by the Cabo de Hornos municipality in the South American mainland.