The Santiago Metro is a rapid transit system serving the city of Santiago, the capital of Chile. It currently consists of seven lines, 143 stations, and 149 kilometres (92.6 mi) of revenue route. The system is managed by the state-owned Metro S.A. and is the first and only rapid transit system in the country.

Santiago, also known as Santiago de Chile, is the capital and largest city of Chile and one of the largest cities in the Americas. It is located in the country's central valley and is the center of the Santiago Metropolitan Region, which has a population of seven million, representing 40% of Chile's total population. Most of the city is situated between 500–650 m (1,640–2,133 ft) above sea level.