| Founded | 1899 [1] |
|---|---|
| Country | Argentina |
| Confederation | CONMEBOL |
| Number of teams | 17 |
| Level on pyramid | 3 (1986–present) |
| Promotion to | Primera Nacional |
| Relegation to | Primera C |
| Domestic cup(s) | Copa Argentina |
| Current champions | Colegiales (2024) |
| Most championships | Banfield Ferro Carril Oeste (7 titles each) |
| TV partners | TyC Sports DirecTV Sports |
| Website | afa.com.ar/primera-b |
| Current: 2024 Primera B Metropolitana | |
Primera B Metropolitana is one of two professional leagues that form the third level of the Argentine football league system. The division is made up of 17 clubs mainly from the city of Buenos Aires and its metropolitan area, Greater Buenos Aires.
Originally created as the second division, it became the third level after a restructuring of the system in 1985 that ended with the creation of Primera B Nacional, set as the second division since then.
The other league at level three is the Torneo Federal A, where teams from regional leagues take part.