| Acronym | Definition |
|---|
| BLF | Busy Lamp Field |
| BLF | Bluff |
| BLF | British Lung Foundation (UK) |
| BLF | Billboard Liberation Front |
| BLF | Business Leaders Forum |
| BLF | Builders Labourers Federation (Australia) |
| BLF | Banque Libano-Francaise |
| BLF | Bovine Lactoferrin |
| BLF | Bluefield, WV, USA (Airport Code) |
| BLF | Baloch Liberation Front |
| BLF | Ballast Lumen Factor (lighting ratio) |
| BLF | Svenska Barnläkarföreningen |
| BLF | Busy Line Field |
| BLF | Biodiversity Legal Foundation (Boulder, Colorado) |
| BLF | Business Leadership Forum |
| BLF | Base Lexicale du Français (French: Lexical Database of French) |
| BLF | Berkeley Law Foundation |
| BLF | Bruce Lee Foundation (Los Angeles, CA) |
| BLF | Ballerina Liberation Front (Dutch band) |
| BLF | Biblical Literature Fellowship (Wheaton, IL) |
| BLF | Building Limes Forum |
| BLF | Black Line Fever |
| BLF | Black Leadership Forum, Inc. |
| BLF | Bekkelagshøgda Lokalhistoriske Forening (Norway) |
| BLF | Blue Low-Fluence (light) |
| BLF | Bubble Lattice File |
| BLF | Black Liberation Front |
| BLF | Beiruti Law Firm (Jordan) |
| BLF | BottomLine Foods |
| BLF | Bibles & Literature in French (Wheaton, IL) |
| BLF | Brûlé Lathus Forage (French drilling company) |
| BLF | Black Locust Farm |
| BLF | Batiquitos Lagoon Foundation |
| BLF | Bildleverantorernas Forening |
| BLF | Byggevare Leverandør Foreningen (Denmark) |
| BLF | Business Lending Fundamentals |
| BLF | Batman LEGO Film |
| BLF | BigSender Language File |
| BLF | Beta Leadership Fund |
| BLF | Bapak Legacy Fund |
| BLF | Al Bihery Law Firm |
| BLF | Brønderslev Lystfiskeriforening (Denmark) |
| BLF | Bright Light Foundation |
| BLF | Bermuda Leadership Forum |
| BLF | Boisés La Fleur (French: The Woodland Flower; Canada) |
| BLF | Bulk Light Fraction |
| BLF | Belmont Library Foundation (Belmont, Massachusetts) |
| BLF | Biggest Little Fellowship |
| BLF | Bottom Loading Furnace |
| BLF | Bluffton University (Bluffton, OH) |
| BLF | Bit-Lock Flag |
| BLF | Beulah Land Farm |
| BLF | Branch Landscape Forester |
| BLF | Bright Lights Film |
| BLF | Balanced Learning Format |
| BLF | Blind Flange |
| BLF | Bonded Labor Fund (Pakistan) |
| BLF | Business Law Forum (various locations) |
| BLF | BudgetLightForum (website) |
| BLF | Bolivarian Liberation Front (Venezuela) |
| BLF | Buckeye Liberty Foundation (Ohio) |
| BLF | Bayerischer Landesverein für Familienkunde eV |
| BLF | Brian Larrabure Framing (Chatsworty, CA) |
| BLF | Breakeven Load Factor (airlines) |
| BLF | Bicycle Liberation Front |
| BLF | Berlin Leder and Fetisch |
| BLF | Best Line Fence (Huntsville, AL) |
| BLF | Bottom Line Financial |
| BLF | Bryant Law Firm (Tulsa, OK) |
| BLF | Barely Legal Fabrications |
| BLF | Big Lottery Fund (UK) |
| BLF | Big Lazy Fart |
| BLF | Bellows Falls (Vermont) |
| BLF | Best Lesbian Friend |