JCI

JCI may refer to:


 * Jakarta Composite Index of Indonesia Stock Exchange (see JSX Composite)
 * JCI Limited or Johannesburg Consolidated Investment Company Limited, formed in 1889 and later split into Anglo American Platinum, Johnnic, and JCI Gold
 * Johnson Controls Inc., a producer of automotive systems, automotive batteries and climate control systems
 * Joint Commission International, a US-based organization for healthcare accreditation
 * Journal of Clinical Investigation, a journal that publishes biomedical research and reviews
 * Junior Chamber International, a worldwide community of young active citizens
 * Juventud Comunista Ibérica, (Iberian Communist Youth), youth wing of the Iberian Communist Federation