| Acronym | Definition |
|---|
| GEOS | Geosynchronous Earth Orbit Satellite |
| GEOS | Geostationary |
| GEOS | Geoworks Operating System |
| GEOS | Graphic Environment Operating System |
| GEOS | Global Earth Observing System |
| GEOS | Global Episode Opinion Survey |
| GEOS | Global Educational Opportunities and Services |
| GEOS | Geodynamics Experimental Ocean Satellite |
| GEOS | Global Entity Online System (Software Daten Service, Vienna, Austria) |
| GEOS | Goddard EOS |
| GEOS | Geodynamic Experimental Ocean Satellite |
| GEOS | Geodetic Earth Observation Satellite |
| GEOS | Geodesic Earth Orbiting Satellite |