D3, D03, D.III, D III or D-3 may refer to:

Transportation

Roads

* London Buses route D3, a Transport for London contracted bus route * D3 motorway (Czech Republic), a motorway in the Czech Republic * D3 road (Croatia), a state road in Croatia *

D3 motorway (Slovakia) The Motorway D3 (formerly D18), sometimes called the Kysuce Motorway, is a motorway in northern Slovakia. Initially, it is supposed to be only a two lane motorway in the Svrčinovec - Slovak/Polish border section, and four lane motorway in the rem ...

, a motorway in northern Slovakia

Aircraft

* Albatros D.III, a 1916 German biplane fighter aircraft * Dewoitine D.3, a Dewoitine aircraft *

Dunne D.3 John William Dunne (2 December 1875 – 24 August 1949) was a British soldier, aeronautical engineer and philosopher. As a young man he fought in the Second Boer War, before becoming a pioneering aeroplane designer in the early years of the 20th ...

, a British Dunne aircraft * Fokker D.III, a 1916 German single-seat fighter aircraft *

Mercedes D.III The Mercedes D.III, or F1466 as it was known internally, was a six-cylinder SOHC valvetrain liquid-cooled inline aircraft engine built by Daimler and used on a wide variety of German aircraft during World War I. The initial versions were introd ...

, a 1914 German 6-cylinder, liquid-cooled inline aircraft engine * Phönix D.III, a variant of the Austro-Hungarian First World War Phönix D.I biplane fighter *

Pfalz D.III The Pfalz D.III was a fighter aircraft used by the '' Luftstreitkräfte'' (Imperial German Air Service) during the First World War. The D.III was the first major original design from Pfalz Flugzeugwerke. Though generally considered inferior to c ...

, a 1917 German fighter aircraft *

Schütte-Lanz D.III The Schütte-Lanz D.III was a German fighter prototype during World War I. It participated in the first ''Idflieg'' D competition at Adlershof, Germany in January and February 1918. It was a conventional single-bay staggered biplane with N-ty ...

, a 1918 German fighter aircraft prototype *

Siemens-Schuckert D.III __NOTOC__ The Siemens-Schuckert D.III was a German single-seat fighter built by Siemens-Schuckert Werke. The D.III was a development of the earlier Siemens-Schuckert D.IIc prototype.Green and Swanborough 1994, p. 530. The D.III was an (nearly) equ ...

, a 1917 German prototype single-seat fighter aircraft

Automobiles

* Ford D3 platform, a full-size car automobile platform *

Peugeot D3 The Peugeot D3 and its successor, the Peugeot D4 were forward control panel vans sold by Peugeot from October 1950 till 1965. The van originated as a front wheel drive light van produced by Chenard-Walcker, whose business Peugeot had acquired by 1 ...

, a panel van manufactured from 1950 to 1955

Locomotives

Bavarian D III The Class D III engines of the Royal Bavarian State Railways (''Königlich Bayerische Staatsbahn'') were tank locomotives designed for shunting and ''Vizinalbahn'' service. Georg Krauss had exhibited a locomotive of this type, which had been de ...

, an 1897 steam locomotive model *

LB&SCR D3 class LB&SCR D3 class was a 0-4-4T tank locomotive designed by R. J. Billinton for the London, Brighton and South Coast Railway (LB&SCR) between 1892 and 1896. They were built for working passenger trains along country and main lines. Construction a ...

, an 1893 British 0-4-4 tank locomotive design * GS&WR Class D3, a

Great Southern and Western Railway The Great Southern and Western Railway (GS&WR) was an Irish gauge () railway company in Ireland from 1844 until 1924. The GS&WR grew by building lines and making a series of takeovers, until in the late 19th and early 20th centuries it was the ...

Irish steam locomotive *

Pennsylvania Railroad class D3 The Pennsylvania Railroad's steam locomotive class D3 (formerly Class C, pre-1895) comprised sixty-seven 4-4-0 locomotives intended for general passenger and freight service, constructed at the railroad's own Altoona Works (now owned by Norfolk So ...

, an 1869 American steam locomotive model

Ships

* HMS ''Icarus'' (D03), a 1936 British Royal Navy destroyer * HMS ''Ranee'' (D03), a 1943 British Royal Navy escort aircraft carrier * USS ''D-3'' (SS-19), a 1910 US Navy submarine

Science and technology

* Dihedral group of order 6 (''D''_''3'') * D-brane, a class of p-branes in theoretical physics * D-3 (video), an uncompressed composite digital video tape format * Nikon D3, a professional-level digital SLR camera

Biology and medicine

* ATC code D03 ''Preparations for treatment of wounds and ulcers'', a subgroup of the Anatomical Therapeutic Chemical Classification System * Dopamine receptor D₃, a human gene * Vitamin D₃ (cholecalciferol), a type of Vitamin D * Melanoma in situ (ICD-10 code: D03) * Iodothyronine deiodinase type III

Computing

* d3.js, Data Driven Documents, a JavaScript library for live web graphics based on changing data * D3, a Pick database sold by Rocket Software * DOCSIS 3, a cable modem standard

Entertainment

* D3 Digivice, a device from the fictional anime/manga ''Digimon'' series * D3 (Tenchi Muyo! Ryo-Ohki), a character in the anime ''Tenchi Muyo!'' * '' D3: The Mighty Ducks'', the third film in ''The Mighty Ducks'' trilogy * '' Dedication 3'', a Lil' Wayne and Young Money mixtape * '' Dhoom 3'', a 2013 Bollywood action movie

Video games

* '' Descent 3'', a 1999 computer game * '' Diablo III'', a 2012 action role-playing game PC game by Blizzard Entertainment * '' Dirt 3'', a 2011 rallying video game * '' Disciples III: Renaissance'', a 2009 video game * '' Disgaea 3'', a 2008/2011 game in the Disgaea series * '' Doom 3'', a 2004 sci-fi horror first-person shooter computer game * '' Driver 3'', a 2004 racing, shooting, and adventure video game

Organizations

* D3 Publisher, a Japanese video game publisher * Daallo Airlines, (IATA airline code), an airline based in Dubai

Other uses

* Dublin 3, a Dublin, Ireland postal district * NCAA Division III, in American collegiate athletics * USL League One, in American professional soccer, sometimes referred to as USL D3 * d3, a three-sided

die Die, as a verb, refers to death, the cessation of life. Die may also refer to: Games * Die, singular of dice, small throwable objects used for producing random numbers Manufacturing * Die (integrated circuit), a rectangular piece of a semicondu ...

in tabletop gaming * d3,

Mieses Opening The Mieses Opening is a chess opening that begins with the move: :1. d3 The opening is named after the German-British grandmaster Jacques Mieses. It is considered an irregular opening, so it is classified under the A00 code in the ''Encyclopa ...

in chess * Voiced palato-alveolar affricate (former IPA symbol dʒ), a type of consonantal sound *Triple D, a term given to King Dedede given by the Nightmare Enterprise Salesman in the anime " Kirby: Right Back at Ya!"