D44

D44, D-44 or D.44 may refer to:


 * 85 mm divisional gun D-44, a Soviet artillery gun
 * Aero D-44, a German military transport aircraft
 * D44 road (Croatia)
 * HMS Danae (D44), a Danae-class cruiser of the Royal Navy
 * HMS Imogen (D44), a I-class destroyer of the Royal Navy
 * HMS Lagos (D44), a Battle-class destroyer of the Royal Navy
 * Digital Forty Four, an Australian datacasting service
 * Semi-Slav Defence, a chess opening