| Abbreviation | Definition |
|---|---|
| NADIS | National Animal Diseases Information and Surveillance |
| NAF | Natural Animal Feeds |
| NAFA | Northeast Arkansans for Animals |
| NAGP | National Animal Germplasm Program |
| NAHC | Nickerson Animal Health Center |
| NAIA | National Animal Interest Alliance |
| NAIA | No Animals In Anguish |
| NAIT | National Animal Identification and Tracing |
| NAK | No Animal Killed |
| NAK | No Animals Killed |
| NANNA | Northamptonshire Animals Needing Nurturing & Adoption |
| NANP | National Animal Nutrition Program |
| NARD | National Animal Rights Day |
| NARN | Northwest Animal Rights Network |
| NASC | Nascnational Animal Supplement Council |
| NASC | National Animal Supplement Council |
| NASH | Neglected Animals Serving Humanity |
| NASHA | Non Animal Stabilised Hyaluronic Acid |
| NASHA | Non Animal Stabilized Hyaluronic Acid |
| NCAL | North Country Animal League |