| Abbreviation | Definition |
|---|---|
| NARL | National Agricultural Research Laboratories |
| NARO | National Agricultural Research Organisation |
| NARS | National Agricultural Research System |
| NARS | National Agricultural Research Systems |
| NARS | National Agriculture Research System |
| NASD | National Agricultural Safety Database |
| NASDA | National Associations of State Departments of Agriculture |
| NASDF | National Agricultural Sector Development Forum |
| NASM | Non-Agricultural Source Material |
| NASS | National Agricultural Statistics Service |
| NASS | National Agriculture Statistics Service |
| NATL | National Agricultural Transportation League |
| NATP | National Agricultural Technology Project |
| NAUU | National Agricultural University of Ukraine |
| NAYI | Nebraska Agricultural Youth Institute |
| NBARD | National Bank for Agriculture and Rural Development |
| NBFA | National Black Farmers Association |
| NBHF | Ngunnawal Bush Healing Farm |
| NBSF | Niantic Bay Shellfish Farm |
| NC | New Crop |