Trenes Argentinos is the name that has been given since 2014^[1] to a group of state-owned companies of Argentina, responsible respectively for the operation of passenger and freight trains, infrastructure, and personal management. Although all its components are under the orbit of the Ministry of Transport, they do not make up an administrative unit.

Since the liquidation of Ferrocarriles Argentinos during the government of Carlos Saúl Menem, Argentina had ceased to have a national railway company. The antecedent of Trenes Argentinos was the creation, in 2008, of the Trenes Argentinos Operaciones (then "Operadora Ferroviaria Sociedad del Estado") (SOFSE) and the Trenes Argentinos Infraestructura (ADIFSE). These companies had a secondary activity until they took over, directly or indirectly, five of the seven lines of the metropolitan railways of Greater Buenos Aires.

In 2013 the former "Administradora de Recursos Humanos Ferroviarios" (ARHF)—created from the structure of Ferrocarril General Belgrano S.A., a spun-off company—was added to the previous ones. of Ferrocarriles Argentinos during the privatization of the services—and Belgrano Cargas y Logística (BCyL), a company created to operate re-statized freight lines and which is currently called "Trenes Argentinos Capital Humano".

In this way, Trenes Argentinos is made up of the following companies, ^[2] each of which has its own structure and authorities:

• Trenes Argentinos Operaciones (SOFSE)
• Trenes Argentinos Infraestructura (ADIF)
• Trenes Argentinos Cargas (BCyL)
• Trenes Argentinos Capital Humano (DECAHF)