DCI

DCI may be an abbreviation for:

Technology

 * D-chiro-inositol, an isomer of inositol
 * Data, context and interaction, an architectural pattern in computer software development
 * Digitally controlled impedance, a control function in FPGAs
 * Display Control Interface, a computer graphics device driver standard developed using code from San Francisco Canyon Company
 * Ductile cast iron, or ductile iron, a more flexible type of cast iron
 * dCi (direct Common-rail Injection), Renault/Nissan's common rail fuel injection technology for diesel engines

Businesses

 * Digital Cinema Initiatives, a consortium to establish a specification for a standard digital cinema architecture
 * Discovery Communications, an American global media and entertainment company
 * Dynamic Cassette International, a Boston, Lincolnshire, UK company that produces products under the Jet Tec brand name
 * DCI Cheese Company
 * Dolphin Capital Investors, a real estate investment company
 * Diners Club International, a global charge card
 * Défense Conseil International, a French international services company in the field of defense and security

Organizations

 * DCI (Wizards of the Coast) (formerly Duelists' Convocation International, now Wizards Play Network), tournament sanctioning body for games including Magic: The Gathering
 * Defence for Children International, a children's rights organization
 * Dental Council of India, an organisation regulating dental education
 * Dialysis Clinic, Inc, a nonprofit medical organization
 * Drum Corps International, the nonprofit organization governing modern junior drum and bugle corps
 * DCI Global Partnerships, a Christian charity organization
 * Distressed Children & Infants International, a nonprofit organization

Other

 * Dade Correctional Institution, a prison in Florida
 * Development Cooperation Instrument, a financial construct of the European Union
 * Director of Central Intelligence, formerly the head of the U.S. Intelligence Community and Central Intelligence Agency
 * Detective chief inspector, a police rank in the United Kingdom
 * Decompression illness, brought on by rapid decompression
 * Defence Capabilities Initiative, a 1999 NATO plan to ensure the effectiveness of multinational operations
 * DCI, the number 601 in Roman numerals
 * District of Columbia International School, a charter school in the District of Columbia