| Acronym | Definition |
|---|
| BFG | Big Friendly Giant (Roald Dahl book) |
| BFG | Bundesanstalt für Gewaesserkunde (Germany: Federal Institute of Hydrology) |
| BFG | Briefing |
| BFG | Boot Failure Guard |
| BFG | Breastfeeding |
| BFG | Battlefleet Gothic (game) |
| BFG | Bound for Glory (wrestling) |
| BFG | Bound for Glory (band) |
| BFG | Bank Für Gemeinwirtschaft (Germany) |
| BFG | British Forces Germany |
| BFG | Bio Force Gun (Doom movie) |
| BFG | Bund Für Geistesfreiheit (German) |
| BFG | Best Friend's Girlfriend |
| BFG | Best for Gaming |
| BFG | Big Freaking Gun (polite form) |
| BFG | Blue Fire Group (Denver, CO) |
| BFG | Big Fat Grin |
| BFG | Bible Fellowship Group |
| BFG | Big Fat Guy |
| BFG | Blast Field Generator |
| BFG | Basic Food Group |
| BFG | Bangor Forest Garden (Wales, UK) |
| BFG | Berkeley Frisbee Group |
| BFG | Beat-Frequency Generator |
| BFG | BF Goodrich Corporation (Benjamin Franklin Goodrich) |
| BFG | Big Freakin' Guitar (polite form) |
| BFG | Binary Frequency Generator |
| BFG | Big Freakin' Grin (polite form) |