Kostner is an abandoned rapid transit station in the West Garfield Park neighborhood of Chicago, Illinois. The station served the Chicago Transit Authority's Congress Line, which is now part of the Blue Line. Kostner opened on August 5, 1962; it was one of two stations on the Congress Line which was not opened with the line on June 22, 1958. The station closed on September 2, 1973, due to low ridership.