| Acronym | Definition |
|---|
| FLB➣Federal Land Bank |
| FLB➣Francesca Lia Block (author) |
| FLB➣Front de Liberation de la Bretagne (French: Breton Liberation Front) |
| FLB➣Format Library |
| FLB➣Fédération Luxembourgeoise de Boxe (French: Luxembourg Boxing Federation; Luxembourg) |
| FLB➣Framed, Ledged & Braced (wood design) |
| FLB➣Fantasy League Baseball |
| FLB➣Forward Logistics Base |
| FLB➣Family Life Bureau (various locations) |
| FLB➣Fédération Libanaise de Basketball (French: Lebanese Basketball Federation) |
| FLB➣Fat Lazy Bastard |
| FLB➣First Liberty Bank (various locations) |
| FLB➣Fonderie et Laminoir de Breteuil (French foundry) |
| FLB➣Fisheries Loan Board (Canada) |
| FLB➣Freshfield Lane Brickworks (UK) |
| FLB➣Fly Like A Bird (song) |
| FLB➣Folsom Lake Bowl (Folsom, CA) |
| FLB➣Fluorescently Labeled Bacteria |
| FLB➣Flow Brazing |
| FLB➣Freelance Blues (comic book) |
| FLB➣Funny Looking Beat (medical/cardiac slang) |
| FLB➣Fat Little Buddies (tavern; Ohio) |
| FLB➣Funny Little Beat (EMS slang) |