J11 may refer to:

Vehicles

Aircraft

* Fiat J 11, an Italian sesquiplane fighter in service with the Swedish Air Force * Junkers J 11, a German ground-attack aircraft *

Shenyang J-11 The Shenyang J-11 (Chinese: 歼-11; NATO reporting name Flanker-B, -L) is a twin-engine jet fighter of the People's Republic of China whose airframe is derived from the Soviet-designed Sukhoi Su-27. It is manufactured by the Shenyang Aircraft Co ...

, a Chinese jet fighter

Automobiles

* James Comet J11, an English motorcycle * Nissan Qashqai J11, a Japanese SUV

Locomotives

* GSR Class J11, an Irish steam locomotive *

LNER Class J11 The GCR Class 9J (LNER Class J11) was a class of 174 0-6-0 steam locomotives designed by John G. Robinson for freight work on the Great Central Railway The Great Central Railway in England was formed when the Manchester, Sheffield and ...

, a class of British steam locomotives

Ships

* , a ''Halcyon''-class minesweeper of the Royal Navy * , a ''Visby''-class destroyer of the Swedish Navy

Other uses

County Route J11 (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 ...

DEC J-11 The J-11 is a microprocessor chip set that implements the PDP-11 instruction set architecture (ISA) jointly developed by Digital Equipment Corporation and Intersil. It was a high-end chip set designed to integrate the performance and features of t ...

, a microprocessor chip set *

Gyroelongated pentagonal pyramid In geometry, the gyroelongated pentagonal pyramid is one of the Johnson solids (). As its name suggests, it is formed by taking a pentagonal pyramid and "gyroelongating" it, which in this case involves joining a pentagonal antiprism to its base ...