Ji

Ji may refer to:

Names and titles

 * Ji (surname), the pinyin romanization of several distinct Chinese surnames
 * Ji (Korean name), a Korean surname and element in given names (including lists of people with the name)
 * -ji, an honorific used as a suffix in many languages of India
 * J.I the Prince of N.Y, American rapper J.I.
 * Ji (or Hou Ji), the legendary founder of the Zhou dynasty

Places in China

 * Jì (冀), pinyin abbreviation for the province of Hebei
 * Jí (吉), pinyin abbreviation for the province of Jilin
 * Ji (state), an ancient Chinese state
 * Ji City (disambiguation), several places
 * Ji County (disambiguation), several places
 * Ji Prefecture (Shandong), a prefecture in imperial China
 * Ji Province, one of the Nine Provinces of ancient China
 * Ji River, either of two former rivers

Organizations

 * Jamaat-e-Islami (disambiguation), several organizations
 * Jemaah Islamiyah (JI), a Southeast Asian militant Islamist rebel group
 * Jurong Institute (JI), a now-defunct pre-university institution in Singapore
 * JI, IATA code for Meraj Airlines since 2010
 * JI, IATA code for Midway Airlines (1993–2003)

Other uses

 * Ji (film), a 2005 Indian Tamil film starring Ajith Kumar and Trisha
 * Ji (monk) (632–682), Chinese monk
 * Ji (polearm) (戟), a kind of Chinese polearm
 * Ji Koizumi, a character in the anime Guru Guru Pon-chan
 * Just intonation, an alternative, and often subordinate to the contemporary Western establishment, tuning concept employed in various musical-compositional procedures and theories
 * Joint Implementation (JI), one of the flexibility mechanisms of the Kyoto Protocol
 * There are two different kana (Japanese script) letters that are romanized as ji:
 * じ: Shi (し) with dakuten (voicing marks)
 * ぢ: Chi (ち) with dakuten
 * Another name for the Chinese hairpin
 * , Tsurumi Line, a line operated by the East Japan Railway Company
 * , Hitahikosan Line, a line operated by the Kyushu Railway Company