| Acronym | Definition |
|---|
| NAMSS➣National Association Medical Staff Services |
| NAMSS➣National Association for Managers of Student Services (Weston-Super-Mare, England, UK) |
| NAMSS➣National Archive of Marine Seismic Surveys |
| NAMSS➣North American Mule Sheep Society |
| NAMSS➣North Atlantic Marine Supplies & Services (Newfoundland, Canada) |
| NAMSS➣Native Americans in Marine and Space Science (Oregon State University; Corvallis, OR) |