| Abbreviation | Definition |
|---|---|
| NCLA | North Carolina Library Association |
| NCLC | National Churchill Library and Center |
| NCLF | Nederland Community Library Foundation |
| NCLF | North Central Library Federation |
| NCLS | Newton County Library System |
| NCLS | North Country Library System |
| NCPL | New Carlisle Public Library |
| NCPL | New Castle Public Library |
| NCPL | New Cumberland Public Library |
| NCPL | Norfolk County Public Library |
| NCPL | North Canton Public Library |
| NCPL | North Castle Public Library |
| NCPL | North Chicago Public Library |
| NCRL | North Central Regional Library |
| NCSML | National Czech Slovak Museum Library |
| NCTL | Nelson Community Toy Library |
| NCTPG | Northern California Technical Processes Group |
| NDBA | Nouveau Dictionnaire de Biographie Alsacienne |
| NDCA | Newscheck Dictionary of Careers Acronyms |
| NDL | National Diet Library |