J18 may refer to:
Vehicles
editLocomotives
edit- GSR Class J18, an Irish steam locomotive
- LNER Class J18, a British steam locomotive class
Ships
edit- HMS Selkirk (J18), a Hunt-class minesweeper of the Royal Navy
- HSwMS Halland (J18), a Halland-class destroyer of the Swedish Navy
- INS Sandhayak (J18), a Sandhayak-class survey ship of the Indian Navy
Other uses
edit- Carnival Against Capital, an anti-globalisation protest held on June 18, 1999
- County Route J18 (California)
- Elongated triangular cupola, a Johnson solid (J18)
- J18 Elit, the highest level of under-18 ice hockey in Sweden
- Pneumonia
See also
edit- 18-j, 2004 film