BDB may refer to:

Science and technology

• 1,3-Benzodioxolylbutanamine (also BDB), an entactogenic drug of the phenethylamine chemical class
• Berkeley DB, a discontinued embedded database software library for key/value data
• Bharat Diamond Bourse, the world's largest diamond bourse
• Big dumb booster, a general class of launch vehicle

Media and publications

• "B D B", the seventh song on Duke Ellington and Count Basie 1961 album First Time! The Count Meets the Duke
• Brown–Driver–Briggs, a standard reference for Biblical Hebrew and Aramaic

Companies and organizations

• Banc De Binary, an Israeli financial firm with a history of regulatory issues on three continents
• Bundesverband deutscher Banken, the Association of German Banks in the private sector

Other uses

• Bundaberg Airport, IATA airport code "BDB"