| Rank | Abbreviation | Meaning |
|---|
| ***** | NANS | Nuclear Agency, Nuclear Security
| |
| **** | NANS | Neuron and Network Simulator
| |
| **** | NANS | NACSE (National Association of Communications Systems Engineers) Associate Network Specialist
| |
| **** | NANS | National Association of Nigeria Students
| |
| **** | NANS | National Association of Nigerian Students
| |
| *** | NANS | Naval Air Navigation School
| |
| *** | NANS | National Association for Neighborhood Schools
| |
| *** | NANS | National Analgesic Nephropathy Study
| |
| *** | NANS | North American N Scale
| |
| *** | NANS | Northern Arizona Normal School
| |
| *** | NANS | Nevada Academy of Natural Sciences
| |
| ** | NANS | National Automated Nesting System
| |
| ** | NANS | Negative Acknowledgment Not Supported
| |
| * | NANS | Nutritional and Nutraceutical Sciences
| |
| * | NANS | National Association of Nappy Services
| |
| * | NANS | North American Neuromodulation Society
| |
| * | NANS | National Agency for Network Services
| |
| * | NANS | Netsaint Aggregate Notification System
| |
| * | NANS | North American Nietzsche Society
| |