KI

Ki or KI may refer to:

Music

 * Ki (album), a 2009 album by Devin Townsend Project
 * Ki, a 1979 album by Kitarō
 * "Ki", a song from the album Minecraft – Volume Beta by C418

Businesses and organizations

 * Klaksvíkar Ítróttarfelag, a Faroese semi-professional football club
 * Communist Initiative, Marxist–Leninist organization in Austria
 * Karolinska Institute, Swedish university
 * Kenyon Institute, a British research institute in Jerusalem
 * Adam Air (2002–2008), an Indonesian airline
 * Kiwanis International, service club

Language

 * Ki language, a Southern Bantoid language of Cameroon
 * Ki (kana), a Japanese syllabic character
 * Ki (cuneiform), a sign in cuneiform writing
 * Gikuyu language, ISO 639-1 code:ki

Names

 * Ki (Korean surname), a Korean surname
 * Ki or Qi (surname)
 * Ki or Ji (surname)

Places

 * Kangaroo Island, South Australia
 * Ki Monastery, in India
 * Kiawah Island, South Carolina, United States
 * King Island (Tasmania), 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
 * Kitchenuhmaykoosib Inninuwug First Nation

Religion and metaphysics

 * Ki (goddess)
 * Qi, or ki in Japanese, a vital force according to Chinese culture that forms part of any living thing

Biology and chemistry

 * Ti (plant), also called Kī
 * Ki, an equilibrium constant for a chemical reaction or process "i":
 * dissociation constant applicable to process, abbreviated as "i".
 * a measure of the binding affinity of a ligand to a biomolecule
 * Potassium iodide, chemical formula KI
 * Gene knockin or Knock-in, a genetic engineering method
 * Ki Database, a database of biochemical information

Computing

 * Ki (prefix symbol), the prefix symbol of the binary unit prefix kibi
 * Ki, International Electrotechnical Commission standard symbol for number 1024
 * K-I algorithm, Kittler and Illingworth iterative algorithm for image segmentation thresholding
 * Ki (or Ki), the unique cryptographic key of each cell phone's SIM card

Other uses

 * Knowledge integration, in epistemology
 * Grover C. Winn (1886–1943), nicknamed "Ki", American lawyer and politician