LIS or LiS may refer to: Computing LIS (programming language) Lis (linear algebra library), library of iterative solvers for linear systems Laboratory information system, databases oriented towards medical laboratories Land information system, land mapping and cadastre GIS used by local governments Language-independent specification, a programming language specification Legume Information System, online resources and exploratory tools for legume researchers and breeders Linear Integrated Systems, American manufacturer of semiconductors Local information systems, collect, store, and disseminate information about small geographic areas Location information server, provides location information Longest increasing subsequence, algorithm to find the longest increasing subsequence in an array of numbers Science Laser Isotope Separation, a means of producing enriched uranium from uranium ore Lateral internal sphincterotomy, an operation for the treatment of chronic anal fissure Lightning Imaging Sensor, an instrument on the TRMM satellite and on the International Space Station Liquid-impregnated surface Locked-in syndrome, a type of paralysis Library and information science Other Lis (given name) Lis (surname) Lis River, a river in Portugal Lis coat of arms, of Polish Clan Lis Lis, Albania, in the Mat municipality of Dibër County Italian Sign Language (Lingua dei Segni Italiana) Life Is Strange (series), a series of episodic graphic adventure games. Life Is Strange (2015 video game) Lithium-sulphur battery (Li-S) Locate in Scotland (1981–2001), replaced by Scottish Development International London Interdisciplinary School, alternative university in England Lisbon Airport, Portugal, IATA code