D19 may refer to:
Ships , a Cannon-class destroyer escort of the Brazilian Navy , a County-class destroyer of the Royal Navy , a Admiralty type destroyer of the Royal Navy , a Ruler-class escort carrier of the Royal Navy , 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 Leapmotor D19, an electric car LNER Class D19, an English steam locomotive class