KI

Ki or KI may refer to:

In arts and entertainment

• Ki (Devin Townsend Project album), 2009
• Ki (Kitaro album), 1979
• Killer Instinct (video game series), video game
• Kid Icarus, video game
• Kambakkht Ishq, 2009 Hindi language film
• Kids Incorporated, TV series
• KI, a D'ni communication device used in the game Uru: Ages Beyond Myst
• King's Indian, a common chess opening
• KÍ Klaksvík, football club

In language

• Ki (Korean surname), a Korean surname
• Ki or Qi (surname)
• Ki or Ji (surname)
• ki, the Gikuyu language
• Ki language, a Southern Bantoid language of Cameroon
• Ki (kana), a Japanese syllabic character
• Ki means "Earth" in ancient Sumerian

In religion

• Ki., an abbreviation for the Books of Kings, in Judaeo-Christian religious texts
• KI, an abbreviation for the Bahá'í text Kitáb-i-Íqán (Book of Certitude)
• Ki (goddess)

In science and technology

• Ki (prefix symbol), the prefix symbol of the binary unit prefix kibi
• Ti (plant), also called Kī
• K_i in chemical reactions:
  • the dissociation constant applicable to process abbreviated as "i"
  • the measure of bond-tightness between an enzyme and a corresponding enzyme inhibitor
  • the measurement of ligand binding affinity
• Ki, International Electrotechnical Commission standard symbol for number 1024
• KI, Potassium iodide
• Gene knockin or Knock-in, genetic engineering method
• K-I algorithm, Kittler and Illingworth iterative algorithm for image segmentation thresholding
• Ki (or K_i), the unique cryptographic key of each cell phone's SIM

Places

• Ki Monastery, in India
• Kangaroo Island, Australia
• Kings Island, Ohio, United States, amusement park owned by Cedar Fair Entertainment Company
• Kiribati
  • .ki, the ISO 3166-1 alpha-2 country code top level domain for Kiribati

In politics

• Communist Initiative, Marxist–Leninist organisation in Austria
• Karolinska Institutet, Swedish university
• Adam Air (airline code KI)

Other uses

• Ki Database, a database of biochemical information
• Qi, Ki or chi, Japanese and McCune–Reischauer-type Korean transliteration of the Chinese metaphysical life-force concept Qi
• Knowledge integration, in epistemology
• Grover C. Winn (1886–1943), nicknamed "Ki", American lawyer and politician
• Kenyon Institute, a British research institute in Jerusalem