D5 or D05 may refer to:
Arts and fiction Dedication 5, a 2013 mixtape by American rapper Lil Wayne D5 class Klingon starships, in the Star Trek science fiction series Dimension Delete and Deadly Destruction Day, featured in Digimon Xros Wars
Aviation, transport, vehicles, communications Albatros D.V, a German World War I fighter plane Caterpillar D5 Citroën D5 Dauair (IATA code D5) Dublin 5, an Irish postal district Identification symbol for Nachtjagdgeschwader 3, a Luftwaffe night fighter-wing of World War II Land Rover D5 - Land Rover Discovery 5 Trident D5 ballistic missile Volvo D5 engine, an engine family made by Volvo Cars
Roads D5 motorway (Czech Republic) D5 road (Croatia), a state road Detour for the M5 South Western Motorway, Sydney, Australia
Substances Vitamin D5 D5, also known as DRD5, a subtype of dopamine receptors A 5% dextrose solution, a type of intravenous fluid Decamethylcyclopentasiloxane, an organosilicon compound ATC code D05, Antipsoriatics, a subgroup of the Anatomical Therapeutic Chemical Classification System D5, slang for a 5-milligram diazepam tablet
Other uses Digital 5, a network of leading digital governments D-5 (Panasonic), a professional digital video format Demand 5, a video on demand website The fifth D: All Things Digital, conference Nikon D5, a 20.9 megapixel DSLR camera
See also 5D (disambiguation) DV (disambiguation)