| Acronym | Definition |
|---|
| CDI | Compact Disk Interactive (Phillips format) |
| CDI | Churchill Downs Incorporated |
| CDI | Customer Data Integration |
| CDI | Contrat A Duree Indeterminee (French: Contract of Indeterminate Duration) |
| CDI | Center for Defense Information |
| CDI | Côte d'Ivoire (French: Ivory Coast; Africa) |
| CDI | Centre de Documentation et d'Information |
| CDI | California Department of Insurance |
| CDI | Comisión Nacional para el Desarrollo de los Pueblos Indígenas (Spanish: National Commission for the Development of Indigenous Peoples; Mexico) |
| CDI | Chemical Distribution Institute (UK) |
| CDI | Clostridium Difficile Infection (bacterial infection) |
| CDI | Comitê Para a Democratização da Informática (Portuguese: Committee for the Democratization of Information Technology; Brazil) |
| CDI | Course Deviation Indicator |
| CDI | Community Development Institute |
| CDI | Children's Depression Inventory |
| CDI | Controlled Demolition, Inc. |
| CDI | Cyrel Digital Imager (Dupont/Barco Graphics) |
| CDI | Career Development Institute |
| CDI | Certified Deaf Interpreter (Registry of Interpreters for the Deaf, Inc.) |
| CDI | Capacitor Discharge Ignition |
| CDI | Capacitive Discharge Ignition |
| CDI | Co-operative Development Initiative (Canada) |
| CDI | Committee for Democracy in Information Technology |
| CDI | Clinical Documentation Improvement (Health Care) |
| CDI | Communicable Disease Intelligence (Australia) |
| CDI | Community Development Initiative |
| CDI | Carbonyldiimidazole |
| CDI | Central Diabetes Insipidus |
| CDI | Career Directors International (association of career professionals) |
| CDI | Category Development Index |
| CDI | Cooperative Development Institute (Deerfield, MA) |
| CDI | Chicks Dig It |
| CDI | Chronic Daily Intake |
| CDI | Chak De India (Movie) |
| CDI | Common-rail Diesel Injection |
| CDI | Credit Disability Insurance |
| CDI | Christian Democrat International |
| CDI | Concours de Dressage International (international horse riding event) |
| CDI | Computer Dynamics Inc. |
| CDI | Colour Doppler Imaging |
| CDI | Continuous Deionization |
| CDI | Continuum Dynamics, Inc. |
| CDI | Control Data Institute |
| CDI | Corporate Development International |
| CDI | Conditioned Diphase |
| CDI | Collateral Duty Inspector |
| CDI | Center for Data Insight |
| CDI | CREST Depository Interest |
| CDI | CHESS Depositary Interest (Australia, uncertificated holdings instrument for foreign issuers) |
| CDI | Computational Diagnostics, Inc. |
| CDI | Custodial Detention Index |
| CDI | Cooperative Defense Initiative |
| CDI | Case Development Inspection (environment) |
| CDI | Common Data Interface (simulation modeling) |
| CDI | Corrected During Inspection |
| CDI | Conductivity Depth Image |
| CDI | Channel Distribution Information |
| CDI | Communicable Disease Investigator |
| CDI | Centers Development Initiative (EPSCoR) |
| CDI | Classification, Discrimination, and Identification (Air and Missile Defense radar system functions) |
| CDI | Command Data Interface |
| CDI | Center for Digital Imaging, Inc. |
| CDI | Clinical Dementia Rating |
| CDI | Clean Dry Intact |
| CDI | Course Direction Indicator (aviation) |
| CDI | Coal Dust Injection |
| CDI | Collision Induced Dissociation |
| CDI | Canadian Direct Investment (Abroad) |
| CDI | Cargo Disposition Instructions |
| CDI | Common Data Infrastructure |
| CDI | Circulation Development, Inc. (telemarketing firm) |
| CDI | Conventional Defense Initiative |
| CDI | Cumulative Damage Index |
| CDI | Conventional Defense Improvements |
| CDI | Concordia Debate Institute (Moorhead, MN) |
| CDI | Collector Diffused Isolation (integrated circuits) |
| CDI | Classified Defense Information |
| CDI | Center for Domain Integration (Air Force initiative for creating a modeling and simulation environment) |
| CDI | Company Duty Instructor |
| CDI | Civilian Disabling Injury |
| CDI | Controlled Diesel Injection (Mercedes) |
| CDI | Commission Départementale de l'Identification de l'Isère |
| CDI | Christian Disciples International |
| CDI | Corporate Desktop Initiative |
| CDI | Customer Data Input |
| CDI | Clark and Dillard's Inc. |
| CDI | Critical Decision Issue |
| CDI | Command Detector Interface |
| CDI | Code Decay Index (software reliability) |
| CDI | Cost Driver Initiative |
| CDI | Cornerstone Designs, Inc. |
| CDI | Correct Detection and Identification |
| CDI | Chemistry-Dynamics Interactions (NCAR Atmospheric Chemistry Division) |
| CDI | Crosslink Development International |
| CDI | Capacity Developers Incorporated (Dearborn, MI) |
| CDI | Capability Delivery Increment (US DoD) |