D7, D07, D.VII, D VII, D.7 or D-7 may refer to:

Arts and entertainment

* D⁷, a

chord (music) A chord, in music, is any harmonic set of pitches/frequencies consisting of multiple notes (also called "pitches") that are heard as if sounding simultaneously. For many practical and theoretical purposes, arpeggios and broken chords (in whic ...

* D7, a note in the whistle register * ''D-7'' (Wipers song), a song by the Wipers from the 1980 album ''

Is This Real? ''Is This Real?'' is the debut studio album by the Portland, Oregon-based punk rock band Wipers, originally released on vinyl in January 1980 by Park Avenue Records. The album was reissued on CD by Sub Pop in 1993, augmented by the three tracks ...

'' ** Covered by Nirvana on the 1992 album ''

Hormoaning ''Hormoaning'' is an EP by the American rock band Nirvana. It was released on January 27, 1992 through DGC Records and Geffen Records. It was released in Australia and Japan only, during the band's tour there. Songs Four of the songs on ''Hormoan ...

'' * ''D-7'', a fictional ''Star Trek'' Klingon starship class

Businesses and organisations

* Dinar Líneas Aéreas (1992–2002), IATA airline designator D7 *

AirAsia X AirAsia X (previously known as ''FlyAsianXpress Sdn. Bhd.''), is a long-haul budget airline based in Malaysia, and a sister company of AirAsia. It commenced operations on 2 November 2007 with its first service flown from Kuala Lumpur Internatio ...

, IATA airline designator D7 *

Digital 7 The Digital Nations or DN (previously the Digital 5, Digital 7 and Digital 9) is a collaborative network of the world's leading digital governments with a common goal of harnessing digital technology to improve citizens' lives. Members share w ...

, a group of national governments seeking to strengthen the digital economy

Places

D7 road (Croatia) D7 is a state road connecting Beli Manastir, Osijek, Čepin and Đakovo to Slavonski Šamac border crossing to Bosnia and Herzegovina and to Duboševica border crossing to Hungary. The road is long. The D7 state road runs parallel to the ...

, a state road *

D7 motorway (Czech Republic) D7 motorway ( cs, Dálnice D7), formerly Expressway R7 ( cs, rychlostní silnice R7) is a highway northwest from Prague to Chomutov and the German border. As of 2020 the motorway is long. Under Construction Images File:Expressway R7 CZ eas ...

* A Dublin postal district

Science, technology and mathematics

Military

* D.VII aircraft (disambiguation), a number of aircraft **

Fokker D.VII The Fokker D.VII was a German World War I fighter aircraft designed by Reinhold Platz of the Fokker-Flugzeugwerke. Germany produced around 3,300 D.VII aircraft in the second half of 1918. In service with the ''Luftstreitkräfte'', the D.VII qu ...

, a German World War I fighter aircraft * HMS ''Patroller'' (D07), a 1943 British Royal Navy escort aircraft carrier * HMS ''D7'', a Royal Navy submarine launched in 1911

Transportation and vehicles

* Bavarian D VII, an 1880 German steam locomotive model * Caterpillar D7, a 1938 medium bulldozer *

Dewoitine D.7 The Dewoitine D.7 was a French sport plane built in the mid 1920s. Development The D.7 was a conventionally laid-out monoplane, with a thick cantilever shoulder wing. Its single seat, open cockpit, provided with a small windscreen, was over th ...

, a 1920s French sport plane * Pennsylvania Railroad class D7, a steam locomotive * ATS D7, a Formula One racing car *D7 Super, a BSA Bantam motorcycle

Other

* ATC code D07, ''Corticosteroids, dermatological preparations'', a subgroup of the Anatomical Therapeutic Chemical Classification System * D7 polytope, in 7-dimensional geometry * d⁷, a d electron count