L2
L2, L2, L02, L II, L.2 or L-2 may be :
- L², the official youth wing of Flemish Progressives, a Flemish political party
- L2 cache, the Level-2 CPU cache in a computer
- L² cohomology, a cohomology theory for smooth non-compact manifolds M with Riemannian metric
- L2 Design Group, a publishing company specialised in strategy games board
- L-2 Grasshopper, a Taylorcraft aircraft used by the United States Army Air Forces in World War II
- L2 point, the second Lagrangian point in an astronomical Solar System
- L2 Puppis, a star which is also known as HD 56096
- The space L2 space of square-integrable functions, in mathematics
- L2 norm, in mathematics
- The space ℓ2 of square-summable sequences, in mathematics
- L-2 visa, a document used to enter the United States by the dependent spouse and minor unmarried children of qualified L-1 visa holders
- Arado L II, a 1929 German two-seat, high-wing sporting monoplane
- ASJA L2, a 1932 Swedish biplane trainer aircraft
- ATC code L02 Endocrine therapy, a subgroup of the Anatomical Therapeutic Chemical Classification System
- Chesapeake and Ohio Class L-2 and L-2a, an American 4-6-4 "Hudson" type steam locomotives model
- Milwaukee Road class L2, an American 2-8-2 "Mikado" type steam locomotive
- GSWRI Class L2, a Great Southern and Western Railway Steam locomotive of Irish steam locomotive
- Haplogroup L2 (mtDNA) in human genetics
- Junkers L2, an aircraft engine whose development lead to the Junkers L5
- Lawson L-2, a 1920 American biplane airliner
- Macchi L.2, an Italian biplane flying boat
- SP&S Class L-2, a 1881 steam locomotives class
- L-2, an outfit in the Corps of Cadets at Texas A&M University in College Station, Texas
- a class of FM radio broadcasting in North America
- a frequency used in GPS satellite navigation signals, see GPS signals, a newer version is the L2C frequency
- a L-carrier cable system developed by AT&T
- a second language, as opposed to a first or native language or a foreign language, or a target language being learned
- A series of fragmentation hand grenades used by the British armed forces (American M61 copies), before being replaced by the L109 grenade
- Internet slang, standing for "learn to"
- Layer 2 of the OSI model, in computer networking
- Ligue 2, a league in French football (soccer)
- Lineage II, a MMO game
- Lumines II, a puzzle game
- Leprechaun 2, 1994 film
- Lynden Air Cargo IATA code
- PZL Ł.2, a 1929 Polish liaison aircraft
- The L designation given to the Sterling submachine gun in the British armed forces
- The module code for the Dungeons & Dragons adventure The Assassin's Knot
- The second generation limiter audio effect by Waves Audio, both in hardware and software
- The second lumbar vertebra of the vertebral column, in human anatomy
- Walker County Airport (former FAA LID: L02)