| Acronym | Definition |
|---|
| FWI | Four Winds Interactive (Denver, CO) |
| FWI | Fire Weather Index |
| FWI | French West Indies |
| FWI | Farmers Weekly Interactive |
| FWI | Fixed Wireless Interface |
| FWI | Facil Web Interface |
| FWI | Families and Work Institute |
| FWI | Forest Fire Weather Index |
| FWI | Financial Women International |
| FWI | Freightwatch International (Austin, TX) |
| FWI | Freshwater Institute (Shepherdstown, WV, USA) |
| FWI | Facebooking while Intoxicated (social media) |
| FWI | Flying While Intoxicated |
| FWI | Faculty Workstation Initiative (various schools) |
| FWI | Fenderwell Intake (auto tuning) |
| FWI | Field Work Instructor (various schools) |
| FWI | Fossilized Walrus Ivory |
| FWI | Framework-I (UK social services casework management system/database) |
| FWI | FraudWatch International (internet security company; est. 2003) |
| FWI | Flash with Info |
| FWI | Foster Wheeler Italiana SpA |
| FWI | Fluvial Water Influx |
| FWI | Fort Waste Industries (custom art design; Fort Wayne, IN) |
| FWI | Fleet Weapons Integration (usually appears in conjunctions with AIP) |
| FWI | Floating While Intoxicated |