The 2012–13 Argentine Torneo Argentino A was the eighteenth season of third division professional football in Argentina.
A total of 25 teams competed; the champion was promoted to Primera B Nacional.
1 Play their home games at Estadio José María Minella.
The overall standings for the seven teams of Zone A include the regular season and the first round of the Reválida.
The overall standings for the seven teams of Zone B include the regular season and the first round of the Reválida.