D14

D14 may refer to:

Aircraft

 * Dewoitine D.14, a French transport aircraft
 * Fokker D.XIV, a Dutch fighter aircraft

Ships

 * GREEK DESTROYER Vasilefs Georgios, a G- and H-class destroyer of the Royal Hellenic Navy
 * HMS Armada (D14), a Battle-class destroyer of the Royal Navy
 * HMS Avenger (D14), an Avenger-class escort carrier of the Royal Navy

Other

 * Allis-Chalmers D14, an American tractor
 * Pennsylvania Railroad class D14, an American steam locomotive
 * D14/4 Supreme, a BSA Bantam motorbike
 * LNER Class D14, a class of British steam locomotives

Other uses

 * D14 road (Croatia)
 * D14, a bald eagle from the 2012 clutch of the Decorah Bald Eagles
 * D14 series of Honda D engines