| M.C.L. | Master of Comparative Law 
| Others |
| MCL | Machine Control Language
| Others |
| MCL | Macintosh Common Lisp
| Others |
| MCL | Macomb County Library
| Others |
| MCL | Mahanadi Coalfields Limited
| Others |
| MCL | Malibu Classic Landau
| Others |
| MCL | Manchester Central Library
| Others |
| MCL | Mantle Cell Lymphoma
| Others |
| MCL | Mantle-Cell Lymphoma
| Others |
| MCL | Manual Clutch
| Others |
| MCL | Marine Corps League
| Others |
| MCL | Mass Change Log
| Others |
| MCL | Master Configuration List
| Others |
| MCL | Master of Corporate Law
| Others |
| MCL | Materials Characterization Lab
| Others |
| MCL | Materials Cutting List
| Others |
| MCL | Matt Carroll Lovers
| Others |
| MCL | Matthew Campbell Laurenza
| Others |
| MCL | Maximum Concentration Level
| Others |
| MCL | Maximum Constituent Levels
| Others |
| MCL | Maximum Containment Level
| Others |
| MCL | Maximum Contaminant Level
| Others |
| MCL | Maximum Contaminant Limit
| Others |
| MCL | Maximum Critical Leakage
| Others |
| MCL | Mclaren
| Others |
| MCL | Mean Camber Line
| Others |
| MCL | Media Communications Lab
| Others |
| MCL | Medial Collateral Ligament
| Others |
| MCL | Medial Cruciate Ligament
| Others |
| MCL | Medical Center Library
| Others |
| MCL | Medical Collateral Ligament
| Others |
| MCL | Medical Consultants Network, Inc.
| Others |
| MCL | Members Choice League
| Others |
| MCL | Menstrual Cycle Length
| Others |
| MCL | Mercer County Library
| Others |
| MCL | Michigan Compiled Laws
| Others |
| MCL | Micro Code Level
| Others |
| MCL | MicroChip Link
| Others |
| MCL | Microsoft Compatibility Labs
| Others |
| MCL | Mid Clavicular Line
| Others |
| MCL | Mid-Clavicular Line
| Others |
| MCL | MidClavicular Line
| Others |
| MCL | Middle Compass Locater
| Others |
| MCL | Mif Command Language
| Others |
| MCL | Minecraft Launcher
| Others |
| MCL | Mini Club Luzern
| Others |
| MCL | Minimum Cleanliness Level
| Others |
| MCL | Ministry of Culture
| Others |
| MCL | Mobilization Cross-Leveling System
| Others |
| MCL | Modern and Classical
| Others |
| MCL | Modern and Classical Languages
| Others |
| MCL | Modified Chest Left
| Others |
| MCL | Module Creation Language
| Others |
| MCL | Mono Class Library
| Others |
| MCL | Mononuclear Cell Leukemia
| Others |
| MCL | Monster CableLinks
| Others |
| MCL | More Cotton Loving
| Others |
| MCL | Most Comfortable Level
| Others |
| MCL | Most Comfortable Listening
| Others |
| MCL | Most Contaminated Lakes
| Others |
| MCL | Motor City Limousine
| Others |
| MCL | Mount Mckinley, Alaska
| Others |
| MCL | Moving Contact Lubricant
| Others |
| MCL | Much Clown Luv
| Others |
| MCL | Multi-curricular Computer Laboratory
| Others |
| MCL | MultiEdit Macro Library
| Others |
| MCL | Multimedia Manager Collection File
| Others |
| MCL | Multinomial Conditional Logic
| Others |
| MCL | Multinomial Conditional Logit
| Others |
| MCL | Multnomah County Library
| Others |
| MCL | Munitions Control List
| Others |
| MCL | Musical Chain Letters
| Others |
| MCL | My Car Locator
| Others |
| MCL | My Certified License
| Others |
| MCL | My Class Library
| Others |
| MCL | My Color Library
| Others |