| Acronym | Definition |
|---|
| BFN | Bye for Now |
| BFN | Bundesamt für Naturschutz (German) |
| BFN | Buffer Number |
| BFN | Buenafuente (Spanish TV program) |
| BFN | Bokföringsnämnden (Swedish: Swedish Accounting Standards Board) |
| BFN | Big Fat Negative |
| BFN | Breastfeeding Network (UK) |
| BFN | Buffalo Free-Net (New York) |
| BFN | Brutto für Netto (German: Gross for Net) |
| BFN | British Forces Network |
| BFN | Beam-Forming Network |
| BFN | Beroeps Fotografen Nederland (Dutch: Professional Photographers Netherlands; est. 1919) |
| BFN | Bass Federation Nation |
| BFN | Browns Ferry Nuclear |
| BFN | Bloemfontein, South Africa - Jbm Hertzog (Airport Code) |
| BFN | Blue Falcon Networks (now Akimbo Systems) |
| BFN | Bridge to Future Networks |
| BFN | Node B Frame Number (counter; 3GPP specification) |
| BFN | Big Fat Nothing |
| BFN | Big for Nothing |
| BFN | Beam Frequency Network |
| BFN | Bumpfire.Net (discussion forum) |
| BFN | Band Formation Notice |
| BFN | Bumflip Nowhere (polite form) |
| BFN | Barrhaven Freecycle Network |