D6

D6, D.VI, D06 or D.6 can refer to:

• D-6 Avenue Express, a New York City subway line
• D6-DMSO or deuterated DMSO, a molecule containing six deuterium atoms
• D6 HDTV VTR, a SMPTE VTR Type D6, uncompressed HDTV VTR -(Gigabit Data Recorder - 2000-2006) made by Philips
• D6 road (Croatia), a state road in Croatia
• D6 System, a system of game mechanics for role-playing games
• Albatros D.VI, a 1917 German prototype single-seat twin-boom pusher biplane
• ATC code D06 Antibiotics and chemotherapeutics for dermatological use, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Auster D.6, a 1960 four-seat British light aircraft
• Bavarian D VI, a 1880 German saturated steam locomotive
• Caterpillar D6, a 1956 medium bulldozer
• Dewoitine D.6, a Dewoitine aircraft
• Dublin 6, a Dublin, Ireland postal district
• Dunne D.6, a British Dunne aircraft
• Fokker D.VI, a 1917 German fighter aircraft
• HMS Hampshire (D06), a 1961 British Royal Navy County-class destroyer
• HMS Keith (D06) a WWII British Royal Navy B-class destroyer
• London Buses route D6, a Transport for London contracted bus route
• MGWR Class D6, a Midland Great Western Railway Irish steam locomotive model
• PRR D6, a 1881 American steam locomotive model
• Roland D.VI, a 1918 German fighter aircraft
• SP&S Class D-6, a steam locomotives class
• Clavinet D6, an electrophonic keyboard instrument manufactured by the Hohner company
• The IATA code for Interair South Africa, an airline based in Johannesburg, South Africa
• d6, gaming notation for a six-sided die
• In mathematics, D₆, the dihedral group of order 6
• D06, Carcinoma in situ of cervix uteri in ICD-10 code
• d⁶ may refer to the d electron count of a transition metal complex.
• D6, common abbreviation for the Yamaha XJ600 Diversion motorcycle.
• D-6, codename for the Moscow Metro 2