The Belgrano Norte line is a commuter rail service in Buenos Aires, Argentina run by the private company Ferrovías since 1 April 1994.

The line was part of the Córdoba Central Railway (CCR), specifically the branch from the city of Rosario to Retiro, Buenos Aires.

The CCR would become part of General Belgrano Railway network when the Government of Argentina nationalised French and British companies in 1948.

In 1903 the company was authorised to extend the railway to Boulogne Sur Mer in Greater Buenos Aires and work began three years later.

The trains stopped at the other four stations in existence at the time: Villa Rosa, Del Viso, Los Polvorines and Don Torcuato.

Between Juan B. Justo and Retiro, tracks had to cross over the Maipú Avenue in Vicente López Partido, so a railway bridge was built.

18" station was established and many names were proposed (Ader, Drysdale, La Tahona, among others) until the National Academy of History suggested "Carapachay", which was chosen in 1946.

Between 1947 and 1948, 50 coaches made at the Tafí Viejo workshops and 70 Whitcomb diesel locomotives were added to the Belgrano Norte's fleet, sharing duties with the Ganz railcars.

In 1955, 30 Werkspoor locomotives were acquired and, as a result, Ferrocarriles Argentinos removed the Ganz vehicles from service on the Belgrano Norte line, sending them to Córdoba to serve local railways there.

Four years later, the fleet size was increased with the addition of 20 coaches built by local company Materfer, which replaced the old ones made in Tafí Viejo.

In 1972, the first G22 diesel locomotives manufactured by General Motors' Electro Motive Division were delivered to the Belgrano Norte line.

Some improvements made by Ferrovías included the acquisition of 17 railcars (built by Alstom in 1977) which were to serve from Vicente López and Avellaneda, crossing the Puerto Madero and La Boca neighbourhoods of Buenos Aires, a length of 24 km.

[5][6] Finally, the station was opened at the end of August 2015,[7] providing rail access for the 40,000 people who attend the UBA campus each day.

A fleet of 20 diesel multiple units were to be built and put into operation as an express service covering the Retiro-Boulogne Sur Mer section, with only two intermediate stops, Ciudad Universitaria and Aristóbulo del Valle.

[20] In January 2024, a new station, "Cecilia Grierson" (named after the first woman to receive a Medical Degree in Argentina) was opened in Pilar Partido.