| ND&I | Network Design and Installation 
| Others |
| NDI | Namudi, Papua New Guinea
| Others |
| NDI | Nashville Dental Inc
| Others |
| NDI | National Dance Institute
| Others |
| NDI | National Death Index
| Others |
| NDI | National Decertification Index
| Others |
| NDI | National Defence Identification
| Others |
| NDI | National Defense Institution
| Others |
| NDI | National Deliverability Index
| Others |
| NDI | National Democratic Institute
| Others |
| NDI | National Directors Institute
| Others |
| NDI | National Disability Institute
| Others |
| NDI | National Disability Institute's
| Others |
| NDI | National Driving Institute
| Others |
| NDI | Natural Decorations Incorporated
| Others |
| NDI | Natural Doctors International
| Others |
| NDI | NDI Death Index
| Others |
| NDI | Nebraska Debate Institute
| Others |
| NDI | Neck Disability Index
| Others |
| NDI | Neck Disabliity Index
| Others |
| NDI | Neither Do I
| Others |
| NDI | Nephrogenic Diabetes Insipidus
| Others |
| NDI | Neptune Divers International
| Others |
| NDI | Net Disposable Income
| Others |
| NDI | Network Design and Integration
| Others |
| NDI | Network Designs Inc
| Others |
| NDI | Network Device Installer
| Others |
| NDI | Network Device Interface
| Others |
| NDI | Network Digital Interface
| Others |
| NDI | Network Driver Installer
| Others |
| NDI | Network Driver Interface
| Others |
| NDI | neurodevelopmental impairment
| Others |
| NDI | New Dietary Ingredients
| Others |
| NDI | New Dimensions Inc
| Others |
| NDI | Next Day Interviews
| Others |
| NDI | Nintendo Dev Interface
| Others |
| NDI | Nissan Datsun Infiniti
| Others |
| NDI | Nissan Design International
| Others |
| NDI | Non Destructive Inspection
| Others |
| NDI | Non Developmental Item
| Others |
| NDI | Non Developmental Items
| Others |
| NDI | Non-Destructive Inspection
| Others |
| NDI | Nondestructive inspection
| Others |
| NDI | Nonindustrial Disability Insurance
| Others |
| NDI | Nor Do I
| Others |
| NDI | Notre Dame International
| Others |
| NDI | Number Of Days Inventory
| Others |