KSI (disambiguation)

Template:Sister project KSI (born 1993; Olajide Olatunji) is an English YouTube personality, musician and professional boxer.

KSI or Ksi may also refer to:

• Killed or seriously injured, in road safety
• Kontoret för särskild inhämtning ("Office for Special Collection"), a Swedish intelligence agency
• The Korean Studies Institute, a research institution on Korean studies in South Korea
• KSI Industries, a fictional company in Transformers: Age of Extinction
• KSI, IATA code for Kissidougou Airport in Guinea
• Template:Langx (Football Association of Iceland), Icelandic sports group
• ksi (unit), kilopound per square inch, a non-SI unit of stress or pressure
• Ksi (Cyrillic), a letter of the early Cyrillic alphabet (Ѯ, ѯ) derived from the Greek letter Xi

See also

• The Greek letter Ξ/ξ, pronounced [ksi] in Greek