DBB or dBB can mean several things: Daigasso! Band Brothers, a music video game Dasmariñas Bagong Bayan, a public housing project in the Philippines Davis Brody Bond, an American architectural firm dB(B), a former sound level unit De Broglie–Bohm theory, an interpretation of quantum theory Deep Banana Blackout, an American jazz-funk band Design–bid–build, a project delivery method Deutsche Bundesbahn (German Federal Railway), state railway system of Germany Deutsche Bundesbank, Germany's central bank Deutscher Bandy-Bund (German Bandy Federation), a German sports governing body Deutscher Beamtenbund (German Civil Service Federation), a trade union for German government employees Deutscher Brauer-Bund, a German federation Don Bosco Bandel, a Catholic boys' school in Bandel, India "Duffle Bag Boy", a song by Playaz Circle El Alamein International Airport (IATA: DBB), in El Dabaa, Matrouh Governorate, Egypt German Union of Building Trades, former trade union in Germany