| Acronym | Definition |
|---|
| FGB | Fiber Gigabit |
| FGB | First Gulf Bank |
| FGB | Functional Cargo Block (Functionalui Germaticheskii Block; unit supplied by Russia for the International Space Station) |
| FGB | Feature Group B |
| FGB | Federación Guipuzcoana de Baloncesto (Spanish basketball federation) |
| FGB | France Grande Bretagne (France-Britain Association) |
| FGB | Fibrinogen, B Beta Polypeptide |
| FGB | Functional Energy Block (Russian portion of International Space Station) |
| FGB | Federal Geomatics Bulletin |
| FGB | French-German Brigade (Eurocorps; Strasbourg, France) |
| FGB | Fixed Gameboard |
| FGB | Fleet Governing Board (or Flag Governing Board (oversight body for issues in the Navy) |