| Rank | Abbreviation | Meaning |
|---|
| ***** | GSG | Gunslinger Girl
| |
| **** | GSG | Ground-Signal-Ground
| |
| ** | GSG | Galvanized Sheet Gauge
| |
| ** | GSG | Glass Silicon Glass
| |
| * | GSG | German Sport Guns
| |
| * | GSG | Growth Stock Gazette
| |
| * | GSG | Grampian Speleological Group
| |
| * | GSG | Global Scenario Group
| |
| * | GSG | S&P GSCI Commodity-Indexed Trust Ishares (American Stock Exchange [AMEX])
| |
| * | GSG | Grant and Son Grant
| |
| * | GSG | Glasgow, MT [Glasgow Industrial Airport], USA
| |
| * | GSG | Global Strategies Group
| |
| * | GSG | Geography Specialty Group
| |
| * | GSG | Gold Standard Group
| |
| * | GSG | Government Services Group
| |
| * | GSG | Good Surgeon Guide
| |
| * | GSG | Global Stock Game
| |
| * | GSG | Government Solutions Group
| |
| * | GSG | General Support Group
| |
| * | GSG | Gesundheit und Soziale Gerechtig
| |
| * | GSG | Geological Society of Glasgow
| |
| * | GSG | Goldman Sachs Group, Inc.
| |
| * | GSG | Global Software Group
| |
| * | GSG | Garage Sale Gold
| |
| * | GSG | Galvanized Sheet Gage
| |