DB, dB or db may refer to:
Arts, entertainment and media Daily Bugle or DB, a fictional New York City newspaper in Marvel Comics Doing Business Report, by the World Bank Group Dragon Ball, a Japanese media franchise
Music D♭ (musical note) DB Records, Atlanta, Georgia, US The dB's, an American band in the 1980s DJ DB, a New York–based British DJ
Brands and enterprises DB (car), a French automobile maker Brit Air (IATA airline code) DB Breweries, a New Zealand company DB Networks, an American information security firm Deutsche Bahn, a German railway company since 1994 Deutsche Bank (NYSE symbol), a multinational investment bank headquartered in Frankfurt, Germany Deutsche Bundesbahn, national railway company of the Federal Republic of Germany, 1949–1994 Dolderbahn, a rack railway in Zürich, Switzerland
Places Dâmbovița County (ISO 3166-2:RO code), Romania DB Draw, a bridge over the Passaic River, US Discovery Bay, a residential development in Hong Kong Dobyns-Bennett High School, Kingsport, Tennessee, US
Science and technology Database (DB), an organized collection of data on a computer system. .db, file extension for some database files Decibel (dB), acoustics and electronics unit Dubnium, symbol Db, a chemical element dyne:bolic, a Linux distribution dry bulb, a temperature definition dry basis, a way to measure percentages of components in a chemical composition
Other uses ȸ, the db-digraph a ligature of "d" and "b" in African linguistics Defensive back, a position in American football and Canadian football Defined benefit pension plan, a scheme for retirement plans Double-breasted, a style of garment with wide, overlapping front flaps State Security Directorate (Serbia), Serbian secret police North Sulawesi (vehicle registration prefix DB)
See also Detective Branch (DB), Bangladeshi law-enforcement agency DB, the model names of some Aston Martin vehicles David Brown (entrepreneur) (1904–1993), whose initials are on a series of Aston Martin cars DB9, DB25, etc., types of D-subminiature connector D&B (disambiguation)