OGS may refer to:

• Optical Ground Station, European Space Agency's ground based observatory on Tenerife, Spain
• Oklahoma Geological Survey
• Ontario Genealogical Society
• Ontario Geological Survey

• OGS (electronic toll collection), was used on toll roads and bridges in Turkey. Now defunct.
• One Glass Solution, touchscreen technology

• Ogdensburg International Airport, New York
• Ole Gunnar Solskjær, former Norwegian footballer and current football manager
• Online-Go Server, a non-Java server for Go
• Ontario Graduate Scholarship, in Canada
• Oratory of the Good Shepherd, an international community within the Anglican Communion
• Österreichische Gebärdensprache, sign language used by the Austrian Deaf community
• Our Generation Speaks, a fellowship program and startup incubator

This disambiguation page lists articles associated with the title OGS.
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