D34

D34 may refer to:

Akaflieg Darmstadt D-34, a German sailplane
BHP Port Kembla D34 class, a class of diesel locomotives
Brazilian destroyer Mato Grosso (D34), a Mato Grosso-class destroyer of the Brazilian Navy
D34 road (Croatia)
HMS Diamond (D34), a D-class destroyer of the Royal Navy
HMS Velox (D34), a V-class destroyer of the Royal Navy
LNER Class D34, a class of British steam locomotives
Tarrasch Defense, a chess opening
d34, a die with 34 sides

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