| Abbreviation | Definition |
|---|---|
| ILAF | Iowa Library Association Foundation |
| ILB | Image Library But |
| ILDM | International Library of Diabetes and Metabolism |
| ILDM | International Library of Diabetes Metabolism |
| ILDS | Illinois Library Delivery Service |
| ILEM | Inter-Library Electronic Mail |
| ILF | Indiana Library Federation |
| ILFM | Interlibrary Loan Fee Management |
| ILIAC | International Library Information and Analytical Center |
| ILL | Inter Library Loan |
| ILL | Inter-Library Loan |
| ill. | illustrated/ion(s) |
| ILLO | Interlibrary Loan |
| illus. | illustration(s)/(ed) |
| ILM | The Information Liberation Movement |
| ILMS | Integrated Library Management Software |
| ILMS | Integrated Library Management System |
| ILMS | Integrated Library Management Systems |
| ILMU | Integrated Library Management Utility |
| ILO | Instrumentation Library for Oracle |