2011–12 Primera B Metropolitana

The 2011–12 Argentine Primera B Metropolitana is the season of third division professional of football in Argentina. A total of 21 teams will compete; the champion will be promoted to Argentine Primera B Nacional.

Torneo Reducido
The quarterfinals will be played as single elimination, at the stadium of the higher-placed team. Seeding for the semifinals and final is determined by the team standings in the regular season.

Relegation Playoff Matches
!colspan="5"|Relegation/promotion playoff


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