LLL may refer to:

Businesses and organisations

L3 Technologies L3 Technologies, formerly L-3 Communications Holdings, was an American company that supplied command and control, communications, intelligence, surveillance and reconnaissance ( C3ISR) systems and products, avionics, ocean products, training d ...

, an American defense contractor formerly with the NYSE stock symbol LLL *

La Leche League La Leche League International (LLLI) () is a non-governmental, nonprofit organization that organizes advocacy, education, and training related to breastfeeding. It is present in about 89 countries. The aim of the charity is to provide mother to ...

, an organization that promotes breastfeeding

Education

* LL.L (''Legum Licentiatus''), a degree in civil law at various Canadian universities (especially in Québec) * Lifelong learning *

Lambda Lambda Lambda Lambda Lambda Lambda ( or Tri-Lambs) is a national collegiate co-ed social fraternity founded on January 15, 2006 at the University of Connecticut in Storrs, Connecticut by a small group of students. On April 8, 2017, the ''Alpha chapter'' indu ...

, a co-ed fraternity

Entertainment

*''

Leisure Suit Larry in the Land of the Lounge Lizards Leisure has often been defined as a quality of experience or as free time. Free time is time spent away from business, work, job hunting, domestic chores, and education, as well as necessary activities such as eating and sleeping. Leisure ...

'', the first of a series of video games *'' Love's Labour's Lost'', a comedy by William Shakespeare * Landau, Luckman, and Lake, a fictional holding company in Marvel Comics *LLL, the production code for the 1972 ''Doctor Who'' serial ''

The Sea Devils ''The Sea Devils'' is the third serial of the ninth season of the long-running British science fiction television series '' Doctor Who'', which was first broadcast in six weekly parts on BBC1 from 26 February to 1 April 1972. It was written by M ...

'' *"L. L. L.", a 2015 song by

Myth & Roid Myth & Roid (stylized in all caps) is a Japanese pop rock band centered arounTom-H@ck(guitars, bass, composer, production) and hotaru (keyboards, lyrics, story planning), featuring multiple vocalists. The band made its debut in 2015 with the re ...

Military units

Loyal Lusitanian Legion The Loyal Lusitanian Legion (LLL) was a foreign volunteer corps of the British Army, organized with Portuguese émigrés in England, that fought in the Peninsular War. The LLL was created by the initiative of Portuguese Army Colonels José Maria ...

, a foreign volunteer corps of the British Army, that fought in the Peninsular War

Religion

*Lutheran Laymen's League, also known as Lutheran Hour Ministries, a Christian outreach ministry *"Lunatic, Liar, or Lord", a common summary of

Lewis's trilemma Lewis's trilemma is an apologetic argument traditionally used to argue for the divinity of Jesus by postulating that the only alternatives were that he was evil or mad.Lewis, C. S., ''God in the Dock'' (Eerdmans, 2014), pages 100–101. One versio ...

, a theological argument from C. S. Lewis

Science, technology, computing

Low-level programming language A low-level programming language is a programming language that provides little or no Abstraction (computer science), abstraction from a computer's instruction set architecture—commands or functions in the language map that are structurally sim ...

, such as machine code or assembly *

Lenstra–Lenstra–Lovász lattice basis reduction algorithm The Lenstra–Lenstra–Lovász (LLL) lattice basis reduction algorithm is a polynomial time lattice reduction algorithm invented by Arjen Lenstra, Hendrik Lenstra and László Lovász in 1982. Given a basis \mathbf = \ with ''n''-dimensional int ...

, a polynomial time lattice reduction algorithm *Lowest

Landau level In quantum mechanics, Landau quantization refers to the quantization of the cyclotron orbits of charged particles in a uniform magnetic field. As a result, the charged particles can only occupy orbits with discrete, equidistant energy values, call ...

, wave functions in quantum mechanics *

Lovász local lemma In probability theory, if a large number of events are all independent of one another and each has probability less than 1, then there is a positive (possibly small) probability that none of the events will occur. The Lovász local lemma allows one ...

, a lemma in probability theory *Lawrence Livermore Laboratory, now known as

Lawrence Livermore National Laboratory Lawrence Livermore National Laboratory (LLNL) is a federal research facility in Livermore, California, United States. The lab was originally established as the University of California Radiation Laboratory, Livermore Branch in 1952 in response ...

, a scientific research laboratory in the United States *One of the programming languages used in

Ethereum Ethereum is a decentralized, open-source blockchain with smart contract functionality. Ether (Abbreviation: ETH; sign: Ξ) is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capita ...

{{Disambiguation