DB
DB, dB or db may refer to:

Arts, entertainment and media
Daily Bugle or The DB, a fictional New York City newspaper in Marvel Comics
Doing Business Report, by the World Bank Group

Music
D♭ (musical note)
DB Records, Atlanta, Georgia, US
The dB's, a band in the 1980
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

Law enforcement
Dead body, term used in US law enforcement jargon
State Security Service (FR Yugoslavia) (DB), Serbian secret police

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

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

See also
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)