D90

D90 may refer to:
 * Nikon D90, 12.3 megapixel DSLR camera
 * D 90 road (United Arab Emirates)
 * HMS Southampton (D90), a Royal Navy Type 42 destroyer
 * HMS Speaker (D90), a Royal Navy escort aircraft carrier
 * Grünfeld Defence, Encyclopaedia of Chess Openings code
 * TDK D90 Cassette