| FIB | F***ing Illinois Bastards 
| Others |
| FIB | Faculty on Informatics of Barcelona
| Others |
| FIB | Faida Investment Bank
| Others |
| FIB | Families in Business
| Others |
| FIB | Family Income Benefit
| Others |
| FIB | Famous Illinois Businessman
| Others |
| FIB | Fast Internal Bus Buffer
| Others |
| FIB | Federal Inderland Bureau
| Others |
| FIB | Federal Investigation Bureau
| Others |
| FIB | Federal Investigatory Bureau
| Others |
| FIB | Federation of International Bandy
| Others |
| FIB | Federazione Italiana Barman
| Others |
| FIB | Felag Islenskra Bifreidaeigenda
| Others |
| FIB | Fertility and Infertility Branch
| Others |
| FIB | Festival Internacional de Benicassim
| Others |
| FIB | Festspillene i Bergen
| Others |
| FIB | Fiber Interface Board
| Others |
| FIB | Field Intelligence Bureau
| Others |
| FIB | Field Intelligence Bureau (India)
| Others |
| FIB | File Identification Block
| Others |
| FIB | Fill In Blank
| Others |
| FIB | Fill In the Blank
| Others |
| FIB | Financial Intelligence Branch
| Others |
| FIB | First Interstate Bank
| Others |
| FIB | Fish In a Bottle
| Others |
| FIB | Floating Insulation Base
| Others |
| FIB | Flugzeuge Im Bauch
| Others |
| FIB | Flying Inflatable Boat
| Others |
| FIB | Focus Ion Beam
| Others |
| FIB | Focused Ion Beam
| Others |
| FIB | Focused Ion Bean
| Others |
| FIB | Folket i Bild
| Others |
| FIB | Force Intelligence Bureau
| Others |
| FIB | Force Intervention Brigade
| Others |
| FIB | Forwarding Information Base
| Others |
| FIB | Freggel In Black
| Others |
| FIB | Friendly Illinois Buddy
| Others |
| FIB | Frontal Impact Beam
| Others |
| FIB | Full Integral Brake
| Others |