B10, B X or B-10 may refer to :* B10 (1930s New York City bus) serving Brroklyn B10 road (Cyprus) B-10 recoilless rifle, a rifle used by the Soviet Army Bavarian B X, a 1890 German locomotive model Bensen B-10, a 1958 American unconventional aircraft HMS B10, a British B class submarine Martin B-10, a US bomber. and also : List of Internet slang, a slang expression Caro-Kann Defence, an Encyclopaedia of Chess Openings designation an international standard paper size, defined in ISO 216… (More on B-10)