B series

B series may refer to:

Transportation BMC B-series engine, a type of combustion engine Cummins B Series engine, a family of diesel engines Chevrolet/GMC B series, a bus Transperth B-series train, a type of electric multiple unit used by Transperth Trains in Perth, Western Australia

Other uses A series and B series, a term in philosophy introduced by John McTaggart Butcher series, a type of power series in numerical analysis introduced by John C. Butcher Series B, venture capital funding round Series B banknotes, Irish banknotes

See also B class (disambiguation)