| Acronym | Definition |
|---|
| DCI | Drum Corps International |
| DCI | DIVE (Distributed Interactive Virtual Environment) Client Interface |
| DCI | Division of Criminal Investigation |
| DCI | Director of Central Intelligence |
| DCI | Dental Council of India |
| DCI | Data Center Interconnect (various companies) |
| DCI | Defence for Children International |
| DCI | Detective Chief Inspector |
| DCI | Decor Craft, Inc. (Providence, RI) |
| DCI | Database for Commerce and Industry |
| DCI | Défense Conseil International (French: Defence Council International; est. 1972) |
| DCI | Data Centre Infrastructure (various locations) |
| DCI | Data Center Intelligence (Opsware) |
| DCI | Dénomination Commune Internationale (French: International Common Denomination; medicines) |
| DCI | Digital Constant Image |
| DCI | Data Conversion Interface |
| DCI | Digital Control Interface |
| DCI | Dsch Computer Interconnect |
| DCI | Delivery Content Interface |
| DCI | Direct Common Rail Injection |
| DCI | Discovery Communications, Inc. (Silver Spring, MD) |
| DCI | Decompression Illness |
| DCI | Dossier Clinique Informatisé (French: Computerized Clinical Record) |
| DCI | Discovery Center of Idaho (Boise, ID) |
| DCI | Defense Critical Infrastructure |
| DCI | Data Call-In |
| DCI | Development Centers, Inc. (Michigan) |
| DCI | Digital Connections, Inc. (various locations) |
| DCI | Dredging Corporation of India |
| DCI | Development Cooperation Ireland (formerly Irish Aid) |
| DCI | Display Control Interface |
| DCI | Dakota Creek Industries (Anacortes, WA) |
| DCI | Development Counsellors International |
| DCI | Digital Cinema Initiatives, LLC |
| DCI | Dart Controls, Inc. (Zionsville, IN) |
| DCI | Data Concept Informatique (French information technology company) |
| DCI | Diamond Cutters International (various locations) |
| DCI | Downtown Cincinnati Inc. |
| DCI | Discharge of Classified Information (US DoD) |
| DCI | Defense Capabilities Initiative (NATO) |
| DCI | Ductile Cast Iron |
| DCI | Data Collection Instrument |
| DCI | Dual Channel Interchange (US DoD) |
| DCI | Data Collection Initiative |
| DCI | Development Centre India |
| DCI | Data Center Institute (Association For Computer Operations Management) |
| DCI | Daiwa Corporate Investment (Japan) |
| DCI | Digitally Controlled Impedance |
| DCI | Daikin Compressor Industries (est. 2001; Thailand) |
| DCI | Deere Credit, Inc. (John Deere) |
| DCI | Développement Clinique International (French: International Clinical Development) |
| DCI | Drug and Cosmetic Industry (now Global Cosmetic Industry; publication) |
| DCI | Design Centers International (Charlotte, NC) |
| DCI | Device Control Interface |
| DCI | Desorption Chemical Ionization (mass spectrometry) |
| DCI | Duplicate Coverage Inquiry |
| DCI | Dechlorination |
| DCI | Defence Council Instruction (UK) |
| DCI | Digital Constant Image (Sony TV technology) |
| DCI | Distributed Computing Infrastructure |
| DCI | Digital Cyclone, Inc. (est. 1998; now Garmin, Ltd.) |
| DCI | Data Capture Interface |
| DCI | Dynamic Communications Inc. (Dynamic Communications Inc.) |
| DCI | Department of Clinical Investigation (US Army) |
| DCI | Dynamic Consult International (France) |
| DCI | Data Communication Interface |
| DCI | Direction de la Communication et de l'Information (French: Directorate of Communication and Information) |
| DCI | Dividend Capital Investments (Denver, CO) |
| DCI | Delta County Independent (newspaper in western Colorado) |
| DCI | Default Check Initialisation (Bluetooth) |
| DCI | Digital Citizens' Indaba (online journalism) |
| DCI | Diesel Common-rail Injection (diesel fuel Injection system) |
| DCI | Development Corporation Ireland |
| DCI | Dry Contact Interface |
| DCI | Dineh Cooperatives Incorporated |
| DCI | Deep Computing Institute |
| DCI | Duelist's Convocation International |
| DCI | DNA Copyright Institute |
| DCI | Downlink Control Information (telecommunications) |
| DCI | Development Centre International |
| DCI | Defensive Counter Information |
| DCI | Document Centered Interface |
| DCI | Director Combat Intelligence (US Army) |
| DCI | Digital Carrier Interface (telecommunications) |
| DCI | Data Communications Interrogation |
| DCI | Distributed Computing Integrator (Tangent) |
| DCI | Data Collection Integrator |
| DCI | Digital Computer Interface |
| DCI | Database Configuration Input |
| DCI | Digital Consulting Incorporated |
| DCI | Department of Corrections and Institution (Alabama prison board, 1939-52) |
| DCI | Design Change Instruction |
| DCI | Data Character Identifier |
| DCI | Document Content Indexing |
| DCI | Direct Cryptographic Interface |
| DCI | Director/Directorate for Corporate Information |
| DCI | Daifuku Canada, Inc. (automobile manufacturing) |
| DCI | Doppler Compensation Inhibited |
| DCI | Direct Configuration Interaction |