The Verkehrsverbund Berlin-Brandenburg (VBB) is a transport association run by public transport providers in the German states of Berlin and Brandenburg.

VBB claims to be one of the largest transport associations in Europe based on the area covered of 30,367 km2 with nearly 6 million inhabitants.

There are also several trolleybus and ferry lines within the VBB area.

The number of lines, as of 2005, is as follows:[2]: p.27 The Berlin S-Bahn network amounted for 32.43 million train kilometres in 2005.

[2]: p.27 The percentage of rail passengers transported per company is[2]: p.28