J15 may refer to:
Vehicles
;Aircraft
*
Junkers J 15, a German experimental aircraft
*
Shenyang J-15, a Chinese carrier-based jet fighter
;Locomotives
*
GSR Class J15, an Irish steam locomotive
*
LNER Class J15
The Great Eastern Railway (GER) Class Y14 is a class of 0-6-0 steam locomotive. The LNER classified them J15.
The Class Y14 was designed by T.W. Worsdell for both freight and passenger duties - a veritable 'maid of all work'. Introduced ...
, an English steam locomotive
;Ships
* , a ''Sandhayak''-class survey ship of the Indian Navy
Other uses
*
Bacterial pneumonia
*
County Route J15 (California)
There are 45 routes assigned to the "J" zone of the California Route Marker Program, which designates county routes in California. The "J" zone includes county highways in Alameda, Calaveras, Contra Costa, Fresno, Kern, Inyo, Mariposa, Merced ...
, a County route in Tulare County, California
*
Elongated square bipyramid
In geometry, the elongated square bipyramid (or elongated octahedron) is one of the Johnson solids (). As the name suggests, it can be constructed by elongating an octahedron by inserting a cube between its congruent halves.
It has been named ...
, a Johnson solid (J
15)
* J15, a
Nissan J engine
The Nissan J series are straight-4 and straight-6 gasoline internal combustion engines produced by Nissan in the 1960s through the 1980s. It is similar to the BMC B-Series engine that was built in Japan under licence as the Nissan 1H before being ...
model
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