| Abbreviation | Definition |
|---|---|
| ALMA | Armenian Library and Museum of America |
| ALMO | Alabama Library Media Online |
| ALN | Add Library Name |
| ALOE | Apple Library for Object Embedding |
| ALPS | Algorithms and Libraries for Physics Simulations |
| ALS | Archives Le Saulchoir |
| ALS | Automated Library System |
| ALSC | Alexandria Library Scholars Cooperative |
| ALSC | Arts Library Special Collections |
| ALSC | Association for Library Service to Children |
| ALSC | Association for Library Services to Children |
| ALSC | Association of Library Service to Children |
| ALSD | Academy of Library Science and Documentation |
| ALTA | American Literary Translators Association |
| ALTR | Accessible Library Text Retrieval |
| AMAArchIndHealth | American Medical Association Archives of Industrial Health |
| AMAArchIndHygOccupMed | American Medical Association Archives of Industrial Hygiene and Occupational Medicine |
| AMCL | Apache Milagro Crypto Library |
| AmIndHygAssocJ | American Industrial Hygiene Association Journal |
| AmIndHygAssocQ | American Industrial Hygiene Association Quarterly |