| Acronym | Definition |
|---|
| OBF | On-Bill Financing (energy efficiency) |
| OBF | One Big Fight |
| OBF | Output Buffer Full |
| OBF | Obfuscation |
| OBF | Organic Bamboo Fleece (fabric) |
| OBF | Oregon Bach Festival |
| OBF | One Big Family (various companies) |
| OBF | Ordering and Billing Forum |
| OBF | Original Bass Foundation |
| OBF | Oregon Brewers Festival (Portland, OR) |
| OBF | Olimpíada Brasileira de Física (Portuguese: Brazilian Physics Olympiad) |
| OBF | Officially Brucellosis Free (livestock) |
| OBF | Office of Budget and Finance |
| OBF | Original Bucks Fizz (band) |
| OBF | Open Bioinformatics Foundation |
| OBF | Official Block Family (clothing brand) |
| OBF | Out of Box Failure |
| OBF | Ohio Bible Fellowship |
| OBF | Original Black Free (band) |
| OBF | Ontario Boating Forum |
| OBF | Original Bitch Face |
| OBF | Orkney Bible Festival (Scotland, UK) |
| OBF | Ontario BASS Federation (Canada; Bass Anglers Sportsman Society) |
| OBF | Oberes Bedienfeld (German: upper control panel) |
| OBF | Orthonormal Basis Function (fuzzy modeling) |
| OBF | Organ Blood Flow (biology) |
| OBF | Oil-Based Drilling Fluid |
| OBF | Other Best Friend (Internet slang) |
| OBF | Orange Bowl Foundation |
| OBF | Ownd By Force (Counter-Strike clan) |
| OBF | Octave Band Filter |
| OBF | Orbital Blow-Out Fracture (otolaryngology) |
| OBF | Other Business Fund |
| OBF | Official Best Friend (chat slang) |
| OBF | Online Best Friend |
| OBF | Oregon Beer Force (website) |
| OBF | Official Bellybutton Forum |