J1, J01, J.I, J-I or J-1 may refer to:

Vehicles

Aircraft

* AEG J.I, a World War I German ground attack aircraft *

Albatros J.I The Albatros J.I was a German armored ground attack airplane of World War I, produced in 1918. Design and development The Albatros J.I was a " J-class" derivative of the Albatros C.XII reconnaissance aircraft. The J.I utilized the wings and t ...

, a 1917 German ground-attack single-engine biplane aircraft * Junkers J 1, a 1916 German aircraft * Junkers J.I, a 1917 German aircraft * Lawrance J-1, an early 1920s engine used in American aircraft

Locomotives

LB&SCR J1 class The LB&SCR J1 and J2 classes were 4-6-2 steam tank locomotives designed by D. E. Marsh for express passenger services on the London, Brighton and South Coast Railway. History Following the success of his I3 4-4-2 tank locomotive class, Doug ...

, a British LB&SCR locomotive * PRR J1, an American PRR steam locomotive

Other vehicles

* J-I rocket, a Japanese solid rocket expendable launch vehicle *

J1 type submarine The , also called were large cruiser submarines (Junsen type submarines) of the Imperial Japanese Navy. Four boats were built between 1926 and 1929. These boats, based on the KD2 and U-139 designs, were of a junsen, or cruiser, type with an ...

, a World War II Imperial Japanese Navy cruiser submarines class * HMS ''J1'', a 1915 World War I British submarine *

Al Fahd 300 AL, Al, Ål or al may stand for: Arts and entertainment Fictional characters * Al (''Aladdin'') or Aladdin, the main character in Disney's ''Aladdin'' media * Al (''EastEnders''), a minor character in the British soap opera * Al (''Fullmetal ...

(J-1), an Iraqi surface-to-surface missile project

In arts and entertainment

J-1 World Heavyweight Championship Wrestle Association R (formerly known as Wrestle and Romance and abbreviated as WAR) was a Japanese professional wrestling promotion founded and run by Genichiro Tenryu as the successor to Super World of Sports, and which lasted from 1992 to 20 ...

, a professional wrestling competition * J1 World Tour, a concert tour by Taiwanese singer Jolin Tsai * '' J1 Live Concert'', a 2005 live album by Taiwanese singer Jolin Tsai * "J1" (song), a 2008 song by Mallu Magalhães * J.I the Prince of N.Y, American rapper also known as J.I.

In mathematics and science

* ATC code J01, ''Antibacterials for systemic use'', a subgroup of the Anatomical Therapeutic Chemical Classification System * Haplogroup J1 (Y-DNA), a Y-DNA haplogroup * Janko group J₁, in mathematics * S/2003 J 1, a former name for Eukelade, a satellite of Jupiter * First-order Bessel function of the first kind, denoted

j_1

* J01, the ICD-10 code for acute sinusitis, a medical condition * J₁, the Johnson solid notation for an equilateral square pyramid

Other uses

* J-1 visa, a type of U.S. visa for exchange visitors * The

J1 League The , known as the for sponsorship reasons, is the top level of the system. Founded in 1992, it is one of the most successful leagues in Asian club football. Contested by 18 clubs, it operates on a system of promotion and relegation with the J ...

, the top division of Japanese association football * Samsung Galaxy J1, a smartphone * J1, abbreviation, reference to the director staff of the Joint Chiefs of Staff