| Abbreviation | Definition |
|---|---|
| BLAAR | Basic Libraries And Applications for Robotics |
| BLAB | Biomedical Library Acquisitions Bulletin |
| BLAST | Braddock Library After School Tutorial |
| BLB | Biomedical Library Building |
| BLCC | Bobst Library Computer Center |
| BLCC | Business Library and Collaboration Commons |
| BLCC | Business Library Collaboration Commons |
| BLCP | Buddhist Library Cambodia Project |
| bld | bold |
| BLDS | British Library for Development Studies |
| BLF | Bloomington Library Faculty |
| BLFF | Bandon Library Friends and Foundation |
| BLFG | Balmain Library Film Groups |
| BLIA | Bulgarian Library and Information Association |
| BLISS | Bilkent Library Information Services System |
| BLL | Blinking Light Library |
| BLLD | British Library Lending Division |
| BLMA | Brookline Library Music Association (Brookline, MA) |
| BLOU | Bodleian Library, Oxford University |
| BLP | Bosnia Library Project |