FSW
FSW stands for:
- Fanhui Shi Weixing , a series of reusable Chinese spy satellites
- Faso Airways , airline from Burkina Faso (ICAO code)
- Feet of Sea Water , English unit of measurement for depth and pressure
- Vienna Social Fund
- Friction Stir Welding , English for friction stir welding
- Fuji International Speedway , one of the most important racetracks in Japan
- Powiat Świebodziński in the Lubusz Voivodeship, Poland (license plate)
