H18
# H18

H18 may refer to :

* British NVC community H18, a heath in the British National Vegetation Classification system
* HMS H18, an H-class submarine ordered by but never commissioned into the Royal Navy
* HMS Sabre (H18), a Royal Navy S-class destroyer
* London Buses routes H18, a Transport for London contracted bus route
* Sikorsky H-18, an American helicopter
* Tomakomai Station, in Hokkaido, Japan
