FGS
- Buddhism
- FG (disambiguation)
- FG syndrome
- Faculty of Graduate Studies
- Federal Government of Somalia
- Federation of Genealogical Societies
- Fellow of the Geological Society
- Fergusonite
- Fine Guidance Sensor (HST)
- Fine guidance sensor
- Flagstaff railway station
- Fluorescence guided surgery
- Fo Guang Shan
- Full genome sequencing
- Geranylfarnesyl diphosphate synthase
- German Navy
- Pathway analysis