| Abbreviation | Definition |
|---|---|
| NCBD | National CAHPS Benchmarking Database |
| NCDM | National Center for Database Management |
| NCED | National Conservation Easement Database |
| NCID | National Court Interpreter Database |
| NCMD | National Child Mortality Database |
| NCOD | National Contaminant Occurrence Database |
| NCPD | National Claims and Policies Database |
| ND | No Data |
| NDB | Network Data Base |
| NDB | No DataBase |
| NDC | National Data Center |
| NDDB | Natural Diversity Data Base |
| NDL | Native Database Libraries |
| NDNQI | National Database of Nursing Quality Indicators |
| NDRD | Natural Disaster Reference Database |
| NDSY | No Data SYnchronization |
| NEAD | National Emergency Address Database |
| NEAD | National Environmental Accounting Database |
| NEC | No Existing Category |
| NECID | Nano Exposure Contextual Information Database |