| Abbreviation | Definition |
|---|---|
| LCM | Library Catalog Manager |
| LCM | Library of Congress Magazine |
| LCMARC | Library of Congress Machine Readable Cataloging |
| LCO | Libraries Connect Ohio |
| LCOC | Library of Congress Online Catalog |
| LCP | Library Company of Philadelphia |
| LCP | Library Conference Planner |
| LCPL | Lakes Country Public Library |
| LCPL | Laurens County Public Library |
| LCPL | Lee County Public Library |
| LCPL | Loudoun County Public Library |
| LCPS | Library of Congress Policy Statements |
| LCRI | Library of Congress Rule Interpretation |
| LCRI | Library of Congress Rule Interpretations |
| LCS | Library Computing Services |
| LCSH | Library of Congress Subject Heading |
| LCSH | Library of Congress Subject Headings |
| LCSH | Library of Congress Subjects Headings |
| LCSW | Library Council of Southeastern Wisconsin |
| LCT | Library Customization Tool |