2012–13 Torneo Argentino A

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.

South Zone
1 Play their home games at Estadio José María Minella.

Zone A
Racing (C) was ineligible for the Second Round, as it was involved in relegation.

Overall standings
The overall standings for the seven teams of Zone A include the regular season and the first round of the Reválida. The bottom team relegates to the Torneo Argentino B, while the next-to-last team plays the relegation play-off with a team from such category. Those two teams cannot qualify for the second round of the Reválida.

Overall standings
The overall standings for the seven teams of Zone B include the regular season and the first round of the Reválida. The bottom team relegates to the Torneo Argentino B, while the next-to-last team plays the relegation play-off with a team from such category. Those two teams cannot qualify for the second round of the Reválida.