Kei (given name), a Japanese personal nameShō Kei (1700–1752), a king of the Ryūkyū KingdomKEi (artist name), an electronic music producer and DJKei, Cantonese of Ji (surname)(姫)Kei, Cantonese of Qi (surname)(奇, 祁, 亓)
Automobiles
Kei car, a Japanese category of small automobilesSuzuki KeiKei truck, a tiny 4WD pickup truck in Japan
Places
Kei or Kai Islands, part of the Maluku Islands, Indonesia
Kei languageGreat Kei River, in South Africa
In fiction
xxxHolic: Kei, the second season of the animeSir Kei or Sir Kay, a character in Arthurian legendKei, a character in Akira mediaKei, a character in Dirty Pair mediaKei, a character in the Ape Escape universeKei, a fictional country in Twelve Kingdoms mediaKei, a character in the Moon Child universeKei Nagase, a character in the Ace Combat universeKei, short for Keiichiro, a character in Wangan Midnight and Wangan Midnight Maximum Tune
KEI
Knowledge Ecology International, is an NGO that deals with issues related to the effects of intellectual property on public health, cyberlaw and e-commerce, and competition policy.Knowledge Economic Index, an economic indicator based on the four pilars of the knowledge economy frameworkKey Experience Indicator, an indicator of an end user's experience of a product, service or applicationKeyword Effectiveness Index, a measure of how effective a keyword is for a web siteKinetic Energy Interceptor, a planned American missile defense programNew York Stock Exchange ticker symbol for Keithley Instruments
Other uses
Kei, one of the Kelvin functionsKei school, a Japanese school (style) of Buddhist sculptureKei Rail, a South African rail projectKei cricket team, a South African cricket teamKei, one of two subgroups of the Kugyō, high-ranking Japanese associated with the pre-Meiji court
