D9, D09, D.IX, D IX, D.9 or D-9 may refer to:

Transport and vehicles

* Albatros D.IX, a 1918 German prototype single-seat fighter * Bavarian D IX, an 1888 German steam locomotive model * Bottineau Municipal Airport, FAA LID D09, a public airport in North Dakota, United States *

Caterpillar D9 The Caterpillar D9 is a large track-type tractor designed and manufactured by Caterpillar Inc. It is usually sold as a bulldozer equipped with a detachable large blade and a rear ripper attachment. The D9, with 354 kW (474 hp) of gross p ...

, a 1954 large bulldozer/track-type tractor **

IDF Caterpillar D9 The IDF Caterpillar D9 —nicknamed ''Doobi'' ( he, דובי, for teddy bear) — is a Caterpillar D9 armored bulldozer used by the Israel Defense Forces (IDF). The Israeli armored CAT D9 was heavily modified by the Israel Defense Forces, Isra ...

, an armored bulldozer *

Donavia JSC "Donavia" (russian: ОАО «Донавиа»), also known as Aeroflot-Don (russian: ОАО «Аэрофлот-Дон») between 2000–2009, was an Aeroflot subsidiary airline based in Rostov-on-Don, Russia. Its main bases were Rostov-on-D ...

, IATA code D9, a former subsidiary of Aeroflot * D9 road (Croatia), a state road in Croatia * HMS D9, a 1912 British E class submarine * HMS ''Imperial'' (D09), a 1936 British Royal Navy I-class destroyer * HMS ''Trumpeter'' (D09), a 1942 British Royal Navy escort aircraft carrier * Jodel D9, a 1948 French single-seat ultralight monoplane

Other uses

* ATC code D09, ''Medicated dressings'', a classification for medical products * D-9 (video), a video format also known as Digital-S *

D9-brane In string theory, D-branes, short for ''Dirichlet membrane'', are a class of extended objects upon which open strings can end with Dirichlet boundary conditions, after which they are named. D-branes were discovered by Jin Dai, Leigh, and Polc ...

, a class of objects in string theory *

D-IX D-IX is a methamphetamine-based experimental Performance-enhancing drugs, performance enhancer developed by Nazi Germany in 1944 for military application. The researcher who rediscovered this project, Wolf Kemper, said that "the aim was to use D-IX ...

, a Nazi performance-enhancing drug * ''

District 9 ''District 9'' is a 2009 science fiction mockumentary film directed by Neill Blomkamp in his feature film debut, written by Blomkamp and Terri Tatchell, and produced by Peter Jackson and Carolynne Cunningham. It is a co-production of New Zea ...

'', a 2009 film * The "Divine Nine" (D9), nickname for the

National Pan-Hellenic Council The National Pan-Hellenic Council (NPHC) is a collaborative umbrella council composed of historically African American fraternities and sororities also referred to as Black Greek Letter Organizations (BGLOs). The NPHC was formed as a permanent ...

, an African American fraternity council *

Dublin 9 Dublin postal districts have been used by Ireland's postal service, known as ''An Post'', to sort mail in Dublin. The system is similar to that used in cities in Europe and North America until they adopted national postal code systems in the 19 ...

, a Dublin, Republic of Ireland postal district * Digital 9, a collaborative network of the world's leading digital governments *

Diensteinheit IX The ''Diensteinheit IX'' ( en, Service Unit 9) was a special and covert counter-terrorism unit of the German Democratic Republic Volkspolizei. It was not the same as the ''9. Volkspolizei-Kompanie'' (English: ''9th People's Police Company'') since ...

- a military unit of the East German police the ''

Volkspolizei The ''Deutsche Volkspolizei'' (DVP, German for "German People's Police"), commonly known as the ''Volkspolizei'' or VoPo, was the national police force of the German Democratic Republic (East Germany) from 1945 to 1990. The Volkspolizei was a h ...

Transport and vehicles

Other uses

See also