J4

J4/J04, J-4/J-04 or J.4/J.04 may refer to:

In science and academia

ATC code J04 Antimycobacterials, a subgroup of the Anatomical Therapeutic Chemical Classification System Janko group J4, in mathematics S/2003 J 4, a natural satellite of Jupiter J04 : acute laryngitis and tracheitis ICD-10 code Square cupola, Johnson Solid number 4

In military

Mikoyan-Gurevich MiG-17, Chinese designation of this Soviet-made aircraft is J-4 HMAS J4, an Australian Royal Navy submarine which saw service during World War I Junkers J 4, a 1917 German sesquiplane format warplane J4F was the U.S. Navy's designation for the Grumman Widgeon seaplane.

In transportation Airmak J4, an Italian microlight aircraft design Auster J-4, a 1946 British single-engined two-seat high-wing touring monoplane Morris Commercial J4, van made from 1960 to 1974 under the marques of Morris initially, and later, Austin and BMC County Route J4 (California), a road in the United States GS&WR Class J4, a Great Southern and Western Railway Irish steam locomotive JAC J4, a subcompact car Malaysia Federal Route J4, a major road in Johor, Malaysia Peterson J-4 Javelin, glider Piper J-4, a 1939 trainer aircraft Buffalo Airways International Air Transport Association code GNR Class J4, a class of British 0-6-0 steam locomotives Washington Metropolitan Transit Authority route J4, a bus route that connected College Park, Maryland and Bethesda, Maryland

In consumer electronics Nikon 1 J4, mirrorless interchangeable lens camera Samsung Galaxy J4, a smartphone made by Samsung

Other Jaws: The Revenge, also known Jaws 4 Jarvan IV, a champion in League of Legends

See also 4J (disambiguation)