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

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
JI, Tsurumi Line, a line operated by the East Japan Railway Company
JI, Hitahikosan Line, a line operated by the Kyushu Railway Company