Mathematics and science
* Locus (mathematics), the set of points satisfying a particular condition, often forming a curve * Root locus analysis, a diagram visualizing the position of roots as a parameter changes * Locus (archaeology), the smallest definable unit in stratigraphy * Locus (genetics), the position of a gene or other significant sequence on a chromosomeHumanities and social science
* Locus (rhetoric), another name for a literary or rhetorical ''topos'', a method of constructing an argument * Locus of control, the degree to which people have control over events * Method of loci, a mnemonic system that uses the spatial memory of a familiar place to enhance recollectionComputing
* LOCUS (operating system), a distributed OS developed at UCLA, notable for single-system image idea * Locus Computing Corporation (1982–1995), commercialized the LOCUS distributed operating system developed at UCLA * Locus Map, an Android navigation app using maps of various providers in online and offline mode * Wang LOCI (Logarithmic Computing Instrument), an early scientific calculator by WangEntertainment
* Locus (comics), a Marvel Comics mutant villainess, a member of the Mutant Liberation Front * Locus (magazine), ''Locus'' (magazine), science fiction and fantasy magazine ** Locus Award, presented to the winners of ''Locus'' magazine's annual readers' poll * Locus (video game), ''Locus'' (video game), a 1995 video game by Zombie Studios * Locus (Chicago Underground Duo album), ''Locus'' (Chicago Underground Duo album), 2014 * Locus (Satyr album), ''Locus'' (Satyr album), 2020Other
* HTT Pléthore (Locus Plethore), a Canadian supercar proposed by HTT Automobile in Quebec, Canada * UCLouvain Faculty of Architecture, Architectural Engineering and Urban Planning (LOCI) of the University of Louvain in BelgiumSee also
* *Loki – Trickster in Norse mythology {{disambiguation