| Acronym | Definition |
|---|
| FMLB➣Fédération Musicale du Luxembourg Belge (Belgian Luxembourg Music Federation) |
| FMLB➣Fried My Little Brain (blog) |
| FMLB➣First Mate Last Break (electrical connector) |
| FMLB➣Fous Moi le Bordel (French: I Made a Mess) |
| FMLB➣Fanfare Municipale Luxembourg Bonnevoie |
| FMLB➣First Mortgage Lenders/Brokers (Connecticut) |