D1

D1, D01, D.I, D.1 or D-1 can refer to:

Science and technology

Biochemistry and medicine

• ATC code D01 Antifungals for dermatological use, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Dopamine receptor D₁, a protein
• Haplogroup D1 (Y-DNA)
• Vitamin D₁, a form of Vitamin D
• DI, Iodothyronine deiodinase type I, an enzyme involved with thyroid hormones

Technology

See also: § Military

• Nikon D1, a digital single-lens reflex camera
• D1, former brand of T-Mobile in Germany
• D1, an abbreviation for DOCSIS 1.0 1.0, an international telecommunications standard
• D-1 (Sony), an early digital video recording format
• STS-61-A, also known as D-1, the 22nd mission of NASA's Space Shuttle program
• D-1, from the Proton (rocket family), Russian rockets
• Mercedes D.I, a 1913 German aircraft engine

Military

World War I fighter aircraft

• AEG D.I
• Albatros D.I
• Halberstadt D.I, experimental version of Halberstadt D.II (and Aviatik D.I variant)
• Aviatik (Berg) D.I
• Daimler D.I
• Deutsche Flugzeug-Werke D.I
• Euler D.I
• Flugzeugbau Friedrichshafen D.I
• Fokker D.I
• Hansa-Brandenburg D.I
• Junkers D.I
• Knoller D.I, an Imperial and Royal Aviation Troops aircraft
• Phönix D.I
• Schütte-Lanz D.I
• Siemens-Schuckert D.I
• WKF D.I, an Imperial and Royal Aviation Troops aircraft

Other uses in military

• Char D1, a 1930s French tank
• Dewoitine D.1, a 1920s French single-seat fighter aircraft
• Dunne D.1, a 1907 British experimental aircraft
• 152 mm howitzer M1943 (D-1), a Soviet World War II artillery system
• HMS D1, British early 20th century submarine
• USS D-1 (SS-17), a 1909 American submarine

Transportation

Locomotives and trams

• D1-class, a variant of D-class Melbourne tram
• D1 multiple unit, a train built in 1960s-1980s in Hungary for Soviet railways
• LB&SCR D1 class, an 1873 British tank locomotive
• NCC Class D1, a Northern Counties Committee Irish gauge steam locomotive
• Pennsylvania Railroad class D1, an 1868 American steam locomotive
• Bavarian D I, an 1871 Bavarian tank locomotive
• Min'an Electric D01, a sports luxury vehicle

Roads

• D1 road (Croatia)
• D1 motorway (Czech Republic)
• D1 motorway (Slovakia)

Other uses in transportation

• D1, a model of BSA Bantam British motorcycle
• D1, a commuter rail line of Moscow Central Diameters
• D1 Denby Darts, a bus service in Yorkshire, UK
• BYD D1, an electric multi purpose vehicle (MPV)

Sports

• NCAA Division I, D-I, the highest division of American collegiate athletics
• D1 Grand Prix, a production car drifting series from Japan
• D1NZ, a production car drifting series in New Zealand

Other uses

• D1 (building), a residential building in Dubai
• D1 (Longs Peak), a technical climbing route in Colorado, U.S.
• D1, a Dublin postal district
• D1, a guitar model by C. F. Martin & Company
• D1, a code in Town and country planning in the United Kingdom
• D1, a transmitter equipped juvenile female bald eagle from the 2011 clutch of the Decorah Bald Eagles
• D1, a discount store chain from Colombia.
• D-1 visa, a non-immigrant U.S. visa
• "D-1", a song from Yves (single) by Loona
• D1 Recordings, an Irish independent techno record label
• D01, ECO code for the Richter-Veresov Attack chess opening
• Digital One - also known as D1 National, a digital radio multiplex in the United Kingdom
• Dhoom, a 2004 Indian Hindi-language action film by Sanjay Gadhvi, first part of the Dhoom film series

See also

• 1D (disambiguation)
• Di (disambiguation)