KI

Ki or KI may refer to:

• .ki, the ISO 3166-1 alpha-2 country code top level domain for Kiribati
• Ki., an abbreviation for the Book of Kings in Judaeo-Christian religious texts
• Ki (goddess)
• Ki (kana), a Japanese syllabic character
• Ki or Qi (surname)
• Ki or Ji (surname)
• Ki (Korean name), a Korean family name
• Kī, a.k.a. Ti
• Ki, International Electrotechnical Commission standard symbol for number 1024
• Ki (Devin Townsend album), 2009
• Ki (Kitaro album), 1979
• 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
• ki, the Gikuyu language
• Ki language, a Southern Bantoid language of Cameroon