Vicuña Mackenna is a station on the Santiago Metro in Santiago, Chile. It is a transfer station between the Line 4 and the Line 4A and is the eastern terminus of the Line 4A. The station is composed of a street-level mezzanine, an embanked level, which is located along Vespucio Sur Freeway, and an underground level. The lower level was originally designed to serve both lines as a kind of branch for the would-be Line 4A, but it currently only serves Line 4.