D19

D19 may refer to:

Ships

 * BRAZILIAN DESTROYER ESCORT Bauru, a Cannon-class destroyer escort of the Brazilian Navy
 * HMS Glamorgan (D19), a County-class destroyer of the Royal Navy
 * HMS Malcolm (D19), a Admiralty type destroyer of the Royal Navy
 * HMS Queen (D19), a Ruler-class escort carrier of the Royal Navy
 * HMS Queenborough (D19), a Q-class destroyer of the Royal Navy

Other uses

 * D-19 (Michigan county highway)
 * D-19 launch system for Soviet and later Russian R-39 missiles
 * Allis-Chalmers D19, an American tractor
 * Dewoitine D.19, a French fighter aircraft
 * GSR Class D19, an Irish steam locomotive
 * LNER Class D19, an English steam locomotive class