Ji

Ji or ji may refer to:

• Ji (surname) (姬), the surname of the Zhou dynasty
• Ji (surname) (吉, 己, &c.), other Chinese surnames
• Ji, variant romanizations of surnames written Chi (e.g., 池) or Zhi (e.g., 智) in pinyin
• The State of Ji ( 薊國, 蓟国), a city-state in northern China during the Shang and Zhou dynasties
• Ji (city), the capital of Ji and its successor Yan within modern Beijing, China
• Ji province:

• Jì (冀), the character abbreviation for Hebei, China
• Jí (吉), the character abbreviation for Jilin, China

• Ji County:

• Ji County, Shanxi (吉县) in Linfen
• Ji County, Tianjin (蓟县)

• -ji, a suffix denoting respect in the Indian subcontinent
• ji (字), a Japanese courtesy name
• ji (halberd) (戟), a kind of Chinese halberd
• ji (flute) (지, 篪), an ancient Korean bamboo flute
• Ji Koizumi, a character in the anime Guru Guru Pon-chan
• Ji (magazine), a Ukrainian cultural magazine
• Ji (film), a Tamil film starring Ajith and Trisha Krishnan
• Ji (album), an album by English singer Junior Giscombe

JI may refer to:

• Jemaah Islamiyah, the militant Islamic organization
• Midway Airlines (JI) IATA code
• Journal of Infection, an academic journal
• Joint Implementation, one of the flexible mechanisms of the Kyoto Protocol
• Journal Inquirer, a Connecticut newspaper
• Jakobshavn Isbræ, a glacial outlet in Greenland
• Jurong Institute, a now-defunct pre-university institution in Singapore