Lei(s) or variation may refer to:
Arts and culture Lei (garland), a Hawaiian flower necklace Lei (TV channel), a defunct Italian satellite broadcast Lei Wulong, a fictional character from the Tekken gaming franchise
Businesses and organisations L.E.I., an American fashion brand for girls LEI Wageningen UR, a Dutch research institute Lashkar-e-Islam (LeI), a Pakistani jihadist group Leiden University, public research university in the Netherlands
Economics and finance Lei, plural of the currency Leu, referring to either: Moldovan leu Romanian leu Legal Entity Identifier, a system to track all parties to a financial security transaction Index of Leading Economic Indicators
People Lei (surname) () A female given name () A male given name () Lei Learmont, American politician
Places Almería Airport, Spain (IATA code: LEI) Lei, Italy, a small town in Sardinia Lago di Lei, an artificial lake on the Italian–Swiss border Leicestershire, a county in central England (Chapman code: LEI) Leicester railway station (GBR code: LEI)
Science and technology Leis, a ladybeetle genus now included in Harmonia Lotus Enterprise Integrator, a Lotus Domino software application Low-energy ion scattering (LEIS), a technique used to characterize the chemical and structural makeup of materials
Other uses Lei (vessel), a type of ancient Chinese earthenware wine jar Lessico etimologico italiano, an etymological dictionary of Italian Leis (mythology)
See also Ley (disambiguation)