| Acronym | Definition |
|---|
| FBL | Farm Bureau Life (Iowa) |
| FBL | Frame Burst Error Length |
| FBL | Feedback Loop (computing) |
| FBL | Fondation Biermans-Lapôtre (residence; Belgium, Luxembourg and France) |
| FBL | Flybar Less (software; New Zealand) |
| FBL | Full Bell Lines (coin grading) |
| FBL | FIATA Bill of Lading |
| FBL | Fly by Light |
| FBL | Functional Baseline |
| FBL | Foundation for a Better Life |
| FBL | Frontignan Berre Location (French rental company) |
| FBL | Federated Battle Lab |
| FBL | Federal Barge Lines, Inc. |
| FBL | Food and Brand Lab (University of Illinois, now at Cornell University) |
| FBL | Future Battle Laboratory |
| FBL | Feature-Biased Lithography |
| FBL | Forwarding Bill of Lading |
