| Acronym | Definition |
|---|
| BIF | Burundi Franc (currency of Burundi) |
| BIF | Bank Insurance Fund |
| BIF | Banded Iron Formation (geology) |
| BIF | Bisexual Female |
| BIF | Bird in Flight (photography slang) |
| BIF | Before I Forget |
| BIF | Built-In Function (normally associated with programming language assemblers) |
| BIF | Border Infrastructure Fund (Canada) |
| BIF | Basis in Fact |
| BIF | Balance in Full |
| BIF | Boiler and Industrial Furnace |
| BIF | Biotechnology Innovation Fund (Australian government) |
| BIF | Brevet d'Initiateur Fédéral (French diploma) |
| BIF | Bend-Insensitive Fiber |
| BIF | Binary Information File |
| BIF | Borderline Intellectual Functioning |
| BIF | Butt in Front |
| BIF | Benchmark Interchange Format |
| BIF | Bureau Information Femmes (French: Women's Information Office; Switzerland) |
| BIF | Benevolence International Foundation, Inc. |
| BIF | Benchmark Interface Format |
| BIF | Business Investment Fund |
| BIF | Bayesian Interchange Format |
| BIF | Banking Insurance Fund |
| BIF | Beer It Forward |
| BIF | Bilateral Force |
| BIF | Bus Interface Function |
| BIF | Bali International Finance |
| BIF | Brøndby Idræts Forening (Danish Football Club) |
| BIF | Bomb-In-Face (defensive technique used by fighter-bombers) |
| BIF | Boring Intellectual Fart |
| BIF | Bill Image Formatter (Arbor BP Billing System) |
| BIF | Built-in Flexible (plumbing) |
| BIF | Bandwidth of Intermediate Frequency |
| BIF | Brothers of the Immaculate Fermentation (amateur California wine makers) |
| BIF | Boilers, Incinerators, and Furnaces |
| BIF | Bioactive Inorganic Fillers |
| BIF | Barrow-in-Furness (UK) |
| BIF | Boehringer Ingelheim Fonds (medical research) |
| BIF | Berliner Institut für Finanzmarktforschung (German: Berlin Institute for Financial Research) |
| BIF | Basic in Flow |
| BIF | Best Internet Friend (chat slang) |
| BIF | Builders Iron Foundry (various locations) |