| OGS | istituto nazionale di Oceanografia e di Geofisica Sperimentale 
| Others |
| OGS | Oak Grove School
| Others |
| OGS | Object Group Service
| Others |
| OGS | Offense Gravity Score
| Others |
| OGS | Office of General Services
| Others |
| OGS | Office of Global Services
| Others |
| OGS | Office of Graduate Studies
| Others |
| OGS | Ogdensburg, New York USA
| Others |
| OGS | Ohio Genealogical Society
| Others |
| OGS | Oil and Gas Solutions
| Others |
| OGS | Oil Guard System
| Others |
| OGS | Oklahoma Geological Survey
| Others |
| OGS | Old Granada Studios
| Others |
| OGS | Older Guy Syndrome
| Others |
| OGS | Omega Graduate School
| Others |
| OGS | On Grass Sleeping
| Others |
| OGS | One Glass Solution
| Others |
| OGS | Online Go Server
| Others |
| OGS | Ontario Genealogical Society
| Others |
| OGS | Ontario Graduate Scholarship
| Others |
| OGS | Ontario Graduate Scholarships
| Others |
| OGS | Open Game Source
| Others |
| OGS | Open Geo System
| Others |
| OGS | Open Graphics System
| Others |
| OGS | Opensource Game Studio
| Others |
| OGS | Optical Ground Station
| Others |
| OGS | Optical Guidance Systems
| Others |
| OGS | Oratory of the Good Shepherd
| Others |
| OGS | Organic Grower Summit
| Others |
| OGS | Organic Growers Supply
| Others |
| OGS | Organizaciones Gubernamentales
| Others |
| OGS | Ortega Global Solutions
| Others |
| OGS | Our Generation Speaks
| Others |
| OGS | Outer Glideslope
| Others |
| OGS | Outgoing Mail Server
| Others |
| OGS | Overseas Ground Station
| Others |
| OGS | Oxford GlycoSciences, P. L. C.
| Others |
| OGS | Oxford Graduate School
| Others |
| OGS | Oxygen Generation System
| Others |
| OGS | The Ontario Graduate Scholarship
| Others |