2004–05 Torneo Argentino A

The 2004–05 Argentine Torneo Argentino A was the tenth season of third division professional football in Argentina. A total of 20 teams competed; the champion was promoted to Primera B Nacional.

First stage
In every round the bye team played against the bye team of the other zone: Team from Zone A vs Team from Zone B and Team from Zone C vs Team from Zone D.

Final stage

 * Note: The team in the first line plays at home the second leg.

First stage
In every round the bye team played against the bye team of the other zone: Team from Zone A vs Team from Zone B and Team from Zone C vs Team from Zone D.

Final stage

 * Note: The team in the first line plays at home the second leg.

Championship final

 * Aldosivi played the Promotion Playoff Qualifying against the Revalida Final winner.

Revalida Final

 * Lujan de Cuyo played the Promotion Playoff Qualifying against the Championship Final loser.

Promotion playoff qualifying

 * Aldosivi played the Promotion/relegation playoff B Nacional-Torneo Argentino A.

Promotion/relegation playoff B Nacional-Torneo Argentino A

 * Aldosivi was promoted to 2005–06 Primera B Nacional by winning the playoff and |Racing (C) was relegated to 2005–06 Torneo Argentino A.

Relegation playoff Qualifying

 * Rosario Puerto Belgrano was relegated to Torneo Argentino B and Independiente Rivadavia played the Relegation Playoff.


 * Gimnasia y Tiro was relegated to Torneo Argentino B and Gimnasia y Esgrima (CdU) played the Relegation Playoff.

Relegation playoff
!colspan="5"|Relegation/promotion playoff 1

!colspan="5"|Relegation/promotion playoff 2

1: First leg awarded 0-1; originally 3-0 but Real Arroyo Seco used ineligible players.


 * Gimnasia y Esgrima (CdU) remained in the Torneo Argentino A by winning the playoff.
 * Independiente Rivadavia remained in the Torneo Argentino A by winning the playoff.