D6, D.VI, D06 or D.6 may refer to:
Science and technology ATC code D06, Antibiotics and chemotherapeutics for dermatological use, a chemical classification Cervical intraepithelial neoplasia, ICD-10 code D06, an abnormal growth of cells on the cervix d6, a d electron count of a transition metal complex D6, in mathematics, the dihedral group of order 6 D6-DMSO or deuterated DMSO, a molecule containing six deuterium atoms D6 HDTV VTR, a high-definition digital video tape recorder Nikon D6, a 20.8 megapixel DSLR camera
Transport and vehicles Air Albatros D.VI, a 1917 German prototype single-seat twin-boom pusher biplane Auster D.6, a 1960 four-seat British light aircraft Bavarian D VI, an 1880 German saturated steam locomotive Dunne D.6, a British Dunne aircraft Fokker D.VI, a 1917 German fighter aircraft LFG Roland D.VI, a 1918 German fighter aircraft Interair South Africa, IATA code D6, an airline based in Johannesburg, South Africa
Land Caterpillar D6, a 1956 medium bulldozer D-6 (Д-6), codename for the Moscow Metro 2 D6 road (Croatia), a state road in Croatia D6 motorway (Czech Republic) London Buses route D6, a Transport for London contracted bus route PRR D6, an 1881 American steam locomotive model
Sea HMS Hampshire (D06), a 1961 British Royal Navy County-class destroyer HMS Keith (D06), a British B-class destroyer built around 1930
Other uses d6, in gaming, a six-sided die D6 System, a proprietary role-playing game system Dublin 6, a postal district used by Ireland's postal service Hohner D6 Clavinet, an electrophonic keyboard instrument
See also 6D (disambiguation) DVI (disambiguation)