NEMAS
| Acronym | Definition |
|---|---|
| NEMAS | National Environmental and Meteorological Association, Inc. |
| NEMAS | New England Medieval Arts Society (historical re-enactments) |
| NEMAS | Northeast Media of Atmospheric Science (Boston, MA) |
| NEMAS | NGA (National Geospatial-Intelligence Agency) Emergency Management and Accountability System (US DoD) |