FGS
FGS is an abbreviation for:
- Passenger ship , see passenger ship
- Federal German Ship , ship of the German Navy
- Fellow of the Geological Society , see Geological Society of London
- Fine Guidance Sensor , an instrument on board the Hubble Space Telescope, see Hubble Space Telescope # position control
- Fo Guang Shan , a Buddhist order
- Research Society for Roads , predecessor organization of the Research Society for Roads and Transport (FGSV)