| Abbreviation | Definition |
|---|---|
| BCPL | Boone County Public Library |
| BCPL | Broome County Public Library |
| BDAC | Borms Dokumentatie- en AktieCentrum |
| BDFL | British Defence Film Library |
| bdg | binding |
| BDL | Bioinformatics Data Libraries |
| BDML | Booth and Dimock Memorial Library |
| bds | boards |
| BE | Basic Encyclopedia |
| BEAT | Bibliographic Enrichment Advisory Team |
| BECL | Blue Earth Community Library |
| BECT | Bulletin of Environmental Contamination and Toxicology |
| BEE | Books Each and Everyday |
| BELL | Business Ethics Links Library |
| BF | Bona Fide |
| BFL | Basic Function Library |
| BFL | Bayesian Filtering Library |
| BFOL | Bellevue Friends of the Library |
| BGL | Biggles Graphics Library |
| BGL | Boost Graph Library |