Retiro-Mitre, or simply Retiro, is one of the six large mainline railway station termini in Buenos Aires, Argentina.

Located in the neighborhood of Retiro, it serves as terminal station for the Mitre Line that runs local trains to the northern suburbs of the Buenos Aires metropolitan area.

After the railway Nationalisation in Argentina, the station became part of the Bartolomé Mitre Railway, a division of state-owned Ferrocarriles Argentinos, which operated commuter rail and long-distance services to Tucumán (being the Estrella del Norte the most notable of them)[2] When the entire rail network was privatised in the early 1990s, Retiro Mitre was taken over by Trenes de Buenos Aires (TBA) for commuter services and Tucumán Ferrocarriles for long-distance journeys to the province, also crossing Rosario and Santiago del Estero.

[7] In 2015 plans were announced to expand the station with new platforms to accommodate long-distance services operated by Operadora Ferroviaria Sociedad del Estado.

[8] State-owned Trenes Argentinos operates the commuter rail services calling at José León Suárez (General San Martín Partido), Tigre, and Bartolomé Mitre along its three branches.