DD

DD, dd, or other variants may refer to:

D-D locomotives, UIC classification for a railway locomotive with two four-axle bogies
Damage deposit, amount returned if rented object is handed back in good condition
Dd (digraph), in the Welsh language
<tt>dd (Unix)</tt>, a program that copies and convert files and data
D with stroke (Đ), noted as "DD" in VIQR notation
DD Media Group, television producer and distributor
Doctor of Divinity (D.D.), as the abbreviation for the Latin term Divinitatis Doctor
<code>dd</code>, an HTML element for specifying definition data
Donnie Darko, film
Dungeons and Dragons, a roleplaying game
Dimebag Darrell late lead guitarist of metal band Pantera
Differential Diagnosis in medicine or taxonomy.
Due Diligence

DD may also refer to:

In electronics and computing: Dolby Digital, the trademark for an audio compression system created by Dolby Laboratories
Deployment Descriptor, a component in Java 2 Platform, Enterprise Edition applications
Double density, a capacity designation on magnetic storage, usually floppy disks
Deckadance, a DJ program for Windows and Mac OS X designed by Image-Line
Digital distribution, the principle of providing digital information and content over the Internet in the form of products or services
.dd, a hypothetical domain name for the German Democratic Republic.

In Indian media: DD National, an Indian national channel also referred as DD 1
Doordarshan, an Indian national television broadcaster

In the military: DD tank, an amphibious swimming tank
"Dishonorable discharge", a type of military discharge
DD, the United States Navy hull classification for a Destroyer

As a symbol: DD, one of the Brassiere measurements
DD, the licence plate code for Dresden
DD, the IATA code for Nok Air
DD, stock ticker symbol for DuPont

In other uses: Direct democracy
Delhi Daredevils, an Indian Premier League franchise
The Dresden Dolls, a musical duo from Boston
Data Deficient, on the IUCN Red List of Threatened Species
Designated driver, an individual within a group of people drinking alcoholic beverages who remains sober to drive others home
Destructive Device, a bomb, grenade, other such explosive, or firearm with a bore over 1/2" in US Law for Title 2 weapons
Diverged Dynamo

Translation

The word "DD" occurs as such in the following languages: English, German, French, Korean, Italian, Lithuanian, Dutch, Japanese, Norwegian (Bokmål), Swedish.

Translation(s) in other languages: Ripuarian: DD (Watt ėßß datt?), Finnish: Dd.