| Abbreviation | Definition |
|---|---|
| RTDL | Redford Township District Library |
| RTPW | Read The Printed Word |
| RUL | Rutgers University Library |
| RULA | Ryerson University Library and Archives |
| RUSQ | Reference & User Services Quarterly |
| RVL | Roanoke Valley Libraries |
| RWL | Region of Waterloo Library |
| S&H | Science and Health |
| SAA | Society of American Archivists |
| SABLE | Supplemental Alternative Basic Library Education |
| SACO | Subject Authority Cooperative Program |
| SAfrMedJ | South African Medical Journal (Capetown) |
| SAHGB | The Society of Architectural Historians of Great Britain |
| SAIL | Service And Achievement In The Library |
| SAL | Society of Antiquaries of London |
| SALC | Southern Alberta Library Conference |
| SALI | Sudanese Association for Libraries and Information |
| SALIS | Substance Abuse Librarians and Information Specialists |
| SALS | Skokie Accessible Library Services |
| SALS | Southern Adirondack Library System |