B11, B.XI or B-11 may refer to: Transportation B11 (New York City bus) serving Brooklyn Bundesstraße 11, federal highway in Germany Vehicles HMS B11, a B-class submarine of the British Royal Navy Bavarian B XI, an 1895 German steam locomotive model Bensen B-11, a Bensen Aircraft model Douglas YB-11, a bomber designed for the United States Army Air Corps Nissan B11, a version of the Nissan Sunny Volvo B11R, a coach bus chassis manufactured by Volvo since 2011 Other uses B-11 recoilless rifle, a Soviet 107 mm weapon Gareth Bale, a professional footballer from Wales Boron-11 (B-11 or 11B), an isotope of boron Caro-Kann Defence, Encyclopaedia of Chess Openings code B11 See also 11B (disambiguation) B1 (disambiguation) BII (disambiguation) BLL (disambiguation) BXI (disambiguation)