| Abbreviation | Definition |
|---|---|
| MLA | Minnesota Library Association |
| MLA | Missouri Library Association |
| MLAC | Minnesota Library Access Center |
| MLAS | Management of Library Associations Section |
| MLB | MacKimmie Library Block |
| MLC | Michigan Library Consortium |
| MLC | Mississippi Library Commission |
| MLC | Municipal Library Consortium |
| MLD | Meridian Library District |
| MLES | Medical Library Education Section |
| MLFL | Modern Languages Faculty Library |
| MLFS | Mathematical Library for Flight Software |
| MLG | Medical Library Group |
| MLIC | Matsushita Library Information Center |
| MLIM | Master of Library and Information Management |
| MLIN | Massachusetts Library And Information Network |
| MLIS | Master Of Library And Information Science |
| MLIS | Masters Of Library And Information Science |
| MLIS | Masters Of Library And Information Studies |
| MLL | Mid Level Library |