D18
D18 was the name of various warships:
- HMS Antrim (D18) , a British County-class destroyer
- HMCS Assiniboine (D18) , a World War II flotilla commander in the Royal Canadian Navy
- HMS Battleaxe (D18) , a British weapon-class destroyer
D 18 or D-18 denotes:
- Akaflieg Darmstadt D 18 , a German sport airplane
- Lotaryov D-18 , a Soviet jet engine