| MABS | Master of Arts Biblical Studies 
| Others |
| MABS | Master of Arts in Biblical Studies
| Others |
| MABS | Master of Arts in Biomedical Studies
| Others |
| MABS | Meggitt Aircraft Braking Systems
| Others |
| MABS | Methacrylate Acrylonitrile Butadiene Styrene
| Others |
| MABS | Microenterprise Access to Banking Services
| Others |
| MABS | Microsoft Azure Backup Server
| Others |
| MABS | Microsoft Azure BizTalk Services
| Others |
| MABS | Mid Atlantic Baseline Studies
| Others |
| MABS | Mid Atlantic Baseline Study
| Others |
| MABS | Mid Atlantic Biofeedback Society
| Others |
| MABS | Modeling and Analysis of Biological Systems
| Others |
| MABS | Money Advice and Budgeting Service
| Others |
| MABS | Money Advice Budgeting Service
| Others |
| MABS | Money and Budgeting Service
| Others |
| MABS | Multi Agency Behaviour Support
| Others |
| MABS | Multi Agent Based Simulation
| Others |
| MABS | Multicultural Association of Business Students
| Others |
| MABSTOA | Manhattan and Bronx Surface Transportation Operating Authority
| Others |
| MABT | Massachusetts Association of Biology Teachers
| Others |
| MABT | Michigan Association of Biology Teachers
| Others |
| MABTS | Master of Arts in Biblical and Theological Studies
| Others |
| MABTS | Mid-America Baptist Theological Seminary
| Others |
| MABTS | Midwest Auto Body Trade Show
| Others |
| MABTW | Men Are Better Than Women
| Others |
| MABU | Microsoft Automotive Business Unit
| Others |
| MABUS | Metro Area Businesses Using Sequent
| Others |
| MABUS | Moved Away Brother Ultimately Suffered
| Others |
| MABY | My Art Becomes Yours
| Others |
| MABYS | Metropolitan Association for Befriending Young Servants
| Others |
| MABYV | Melon Aphid Borne Yellows Virus
| Others |
| MAC | Apple Macintosh Black & White MacPaint file Bitmap graphics
| Others |
| MAC | MAC Address Collector
| Others |
| MAC | Mac Apple Corps
| Others |
| MAC | Macadam
| Others |
| MAC | MACarca
| Others |
| MAC | Macaroni and Cheese
| Others |
| MAC | Macau Autosports Club
| Others |
| MAC | MacDonald
| Others |
| MAC | Macedonian
| Others |
| MAC | Macerated
| Others |
| MAC | Machine Access Code
| Others |
| MAC | Machine Accountant Chief Petty Officer
| Others |
| MAC | Machine Address Code
| Others |
| MAC | Machine Aided Cognition
| Others |
| MAC | Machine Always Crashes
| Others |
| Mac | Macintosh
| Others |
| MAC | Macintosh (computer)
| Others |
| MAC | Macintosh All Caps
| Others |
| MAC | Mackenzie a character
| Others |