FQS
| Acronym | Definition |
|---|---|
| FQS | Fédération des Québécois de Souche (French: Quebec Family Federation; Quebec, Canada) |
| FQS | Forensic Quality Services (Clearwater, FL) |
| FQS | First Quarter Storm (Phillipine period of intensified activism in early 1970) |
| FQS | fixed-quantity system |
| FQS | Front Quadrant Swimming |
| FQS | Fare Quote Server (flight fare database) |
| FQS | Flight Qualified System |
| FQS | Fuel Quantity Solenoid (Automotive industry) |