| BIFF | Bahamas International Film Festival 
| Others |
| BIFF | Balanced Investment Fund Format
| Others |
| BIFF | Bangsamoro Islamic Freedom Fighters
| Others |
| BIFF | Bark If From Found
| Others |
| BIFF | Battlefield Identification, Friend or Foe
| Others |
| BIFF | Behaviour, Impact of behaviour, own/others Feelings, Future behaviour
| Others |
| BIFF | Beloit International Film
| Others |
| BIFF | Beloit International Film Festival
| Others |
| BIFF | Berkshire International Film Festival
| Others |
| BIFF | Bermuda International Film Festival
| Others |
| BIFF | Best In Fast Food
| Others |
| BIFF | Best In Food Fast
| Others |
| BIFF | Bicknell International Film Festival
| Others |
| BIFF | Big Improvements For Free
| Others |
| BIFF | Binary Interchange File Format
| Others |
| BIFF | Boulder International Film Festival
| Others |
| BIFF | Brief Informative Firm and Friendly
| Others |
| BIFF | Brief Informative Friendly and Firm
| Others |
| BIFF | Brief Informative Friendly Firm
| Others |
| BIFF | Brisbane International Film Festival
| Others |
| BIFF | Broadway International Film Festival
| Others |
| BIFF | Buffalo International Film Festival
| Others |
| BIFF | Busan International Film Festival
| Others |
| BIFF | But I Fell Flat
| Others |
| BIFF | XLITE 3D file
| Others |