L (disambiguation)

L is the twelfth letter of the Latin alphabet.

L or l may also refer to:

Biology

Carl Linnaeus, in botanist author citations (L.)
Laelia, an orchid genus
Haplogroup L (Y-DNA)
Vertebra in the lumbar region of the spinal cord
ATC code L Antineoplastic and immunomodulating agents, a section of the Anatomical Therapeutic Chemical Classification System

L (complexity), a complexity class in computational complexity theory
L-notation, a notation for running times of subexponential algorithms, often used in number theory
L – A Mathemagical Adventure, a 1984 computer game
Android L, code name for Android Lollipop

Constructible universe, a particular class of sets which can be described entirely in terms of simpler sets
L-function
Laplace transform
Likelihood function
ℓ^p space, the space of sequences with a finite p-norm
L^p space, a function space defined using a natural generalization of the p-norm for finite-dimensional vector spaces

L (French singer), French singer-songwriter
L (South Korean singer), vocalist of Korean boy band Infinite
L Marshall, British singer credited as L on the Wretch 32 song "Traktor"
Lesure Number, music catalogue identifier for the compositions of Claude Debussy
L Number, classification of the compositions of Franz Benda according to the catalogue of Douglas A. Lee

Angular momentum
Inductance, the ratio of the magnetic flux to the current in an electrical circuit
Latent heat
Luminosity
Mean free path, the average distance traveled by a moving particle between successive collisions
Class L, a stellar classification
Galactic longitude (l), in the galactic coordinate system

Chicago "L", a rapid transit system in Chicago
L (New York City Subway service)
L-plate, a plate for learning drivers under instruction
Nissan L engine
L, the low gear of an automatic transmission
LB&SCR L class, a British tank locomotive on the London, Brighton, and South Coast Railway

50 (number), in Roman numerals
${\mathfrak {L}}$ , a siglum for the Vetus Latina version of the Bible
L (novel), a 1999 novel by Erlend Loe
L (film), a 2012 Greek film
L (Death Note), a character from Death Note
L postcode area, for Liverpool
L. Inc., California-based corporation that makes organic personal care products
Canon L lens
Left (direction)
Liberals (Sweden), a political party in Sweden
Loews Corporation, by NYSE ticker symbol
London Stock Exchange ticker symbols
Lucius (praenomen), a Roman praenomen
[ʟ], the velar lateral approximant (IPA notation)
L, a rating of the Brazilian advisory rating system
L, the production code for the 1965 Doctor Who serial The Rescue
The "low" or common language in a diglossia
Miscellaneous, when used as the fifth letter or behind-the-dot notation on the NASDAQ and NYSE ticker symbols
L, the military time zone code for UTC+11:00