The 2009–10 Argentine Torneo Argentino A was the fifteenth season of third division professional football in Argentina. A total of 25 teams competed; the champion was promoted to Primera B Nacional.
First stageZone AZone BZone CSecond stageGroup AGroup B ==Torneo Clausura 2010==
Torneo Clausura 2010
First stageZone AZone BZone CSecond stagePentagonal APentagonal B ==Final stage==
Final stage
SemifinalsFinal ==Promotion/relegation playoff B Nacional-Torneo Argentino A==
Promotion/relegation playoff B Nacional-Torneo Argentino A
• C.A.I remained in the Primera B Nacional by winning the playoff. ==Relegation Matches==
Relegation Matches
• Alumni (VM) remained in the Torneo Argentino A by winning the playoff. • Villa Mitre remained in the Torneo Argentino A by drawing the playoff. ==See also==