| Acronym | Definition |
|---|
| MCLS➣Mucocutaneous Lymph Node Syndrome |
| MCLS➣Monroe County Library System (New York and Michigan) |
| MCLS➣Metropolitan Cooperative Library System (Los Angeles, CA, USA) |
| MCLS➣Massachusetts Correctional Legal Services, Inc. |
| MCLS➣Malaria Commodities Logistics System (Nigeria) |
| MCLS➣Mobilization Cross-Leveling System |
| MCLS➣Middlesex County Legal Services (New Brunswick, NJ) |