| DDI | Daddy Did It 
| Others |
| DDI | Dangerous Driving Index
| Others |
| DDI | Dangerous Drug Informant
| Others |
| DDI | Data Discovery Index
| Others |
| DDI | Data Display Indicator
| Others |
| DDI | Data Distribution Initiative
| Others |
| DDI | Data Documentation Initiative
| Others |
| DDI | Daydream City, Queensland, Australia
| Others |
| DDI | Decision Dynamics Inc
| Others |
| DDI | Dedicated Display Indicator
| Others |
| DDI | Dedicated Display Interface
| Others |
| DDI | Deep Democracy Institute
| Others |
| DDI | Delivery Drivers Inc
| Others |
| DDI | Delporte and Davis, Inc.
| Others |
| DDI | Demand Driven Institute
| Others |
| DDI | Denormalization Duplication and Intelligent
| Others |
| DDI | Deputy Director of Intelligence
| Others |
| DDI | Designated Driver Inc
| Others |
| DDI | Destructive Devices Industries
| Others |
| DDI | Development Dimension International
| Others |
| DDI | Development Dimensions International
| Others |
| DDI | Developmental Disabilities Institute
| Others |
| DDI | Device Driver Interface
| Others |
| DDI | Diamond Development Initiatives
| Others |
| DDI | Diesel Direct Injection
| Others |
| DDI | Digital Data Interchange
| Others |
| DDI | Digital Data Interpreter
| Others |
| DDI | Digital Direct Fuel Injection
| Others |
| DDI | Digital Display Indicator
| Others |
| DDI | Direct Data Interface
| Others |
| DDI | Direct Debit Instruction
| Others |
| DDI | Direct Deposit Indicator
| Others |
| DDI | Direct Dial In it
| Others |
| DDI | Direct Dial Information
| Others |
| DDI | Direct Dial Inward
| Others |
| DDI | Direct Dial Inwards
| Others |
| DDI | Direct Dialing In
| Others |
| DDI | Direct Dialling Inward
| Others |
| DDI | Direct Dialling Inwards
| Others |
| DDI | Direct Diesel Injection
| Others |
| DDI | Direct Draw Interface
| Others |
| DDI | Directorate of Digital Innovation
| Others |
| DDI | Disabled Divers International
| Others |
| DDI | Discard Digits Instruction
| Others |
| DDI | Discrete Data Input
| Others |
| DDI | Discrete Digital Input
| Others |
| DDI | Disk Doubler Image
| Others |
| DDI | Disk Dupe Image
| Others |
| DDI | DiskDupe Disk image file
| Others |
| DDI | Display Driver Information
| Others |
| DDI | Display Driver Interface
| Others |
| DDI | Distributed Data Interface
| Others |
| DDI | Diverging Diamond Interchange
| Others |
| DDI | Division of Drug Information
| Others |
| DDI | DNS DHCP & IP Address management
| Others |
| DDI | DNS DHCP and IP
| Others |
| DDI | Dns Dhcp and Ipam
| Others |
| DDI | DNS, DHCP & IP Address Management
| Others |
| DDI | Doctors Data, Inc.
| Others |
| DDI | Documenti Diplomatici Italiani (Italian archive)
| Others |
| DDI | Downtown Dallas, Inc.
| Others |
| DDI | Downtown Durham Inc
| Others |
| DDI | DRINK and DRIVE iNTELLIGENTLY
| Others |
| DDI | Driver's Door Inc.
| Others |
| DDI | Drug Drug Interaction
| Others |
| DDI | Drug-Drug Interaction
| Others |
| DDI | Duke Digital Initiative
| Others |
| DDI | Dumb Depressed Idiot
| Others |
| DDI | Dynamic Dalvik Instrumentation
| Others |