| MAAR | Medication Authorisation and Administration Record 
| Others |
| MAAR | Ministry of Agriculture and Agrarian Reform
| Others |
| MAAR | Monthly Associate Administrator's Review
| Others |
| MAARA | Malaysia Automotive Recyclers Association
| Others |
| MAARA | Mid Atlantic Asphalt Racing Alliance
| Others |
| MAARC | Mid Atlantic Alfa Romeo Club
| Others |
| MAARD | Modified Acquisition and Assistance Request Document
| Others |
| MAARI | Medically Attended Acute Respiratory Illness
| Others |
| MAARS | Manhattan Area Amateur Radio Society
| Others |
| MAARS | Migrant Academic Achievement Residential Summer
| Others |
| MAARS | Milwaukee Area Amateur Radio Society
| Others |
| MAARS | Modular Advanced Armed Robotic System
| Others |
| MAARSU | Material Contraincendios, Armamento, y Suministros
| Others |
| MAAS | Machine As A Service
| Others |
| MAAS | Map As A Service
| Others |
| MAAS | Martial Arts All Styles
| Others |
| MAAS | Master of Architecture in Advanced Studies
| Others |
| MAAS | MEDITECH As A Service
| Others |
| MAAS | Meet and Assist Service
| Others |
| MAAS | Metal as a Service
| Others |
| MAAS | Mindful Attention Awareness Scale
| Others |
| MAAS | Mobility as a Service
| Others |
| MAAS | Model As A Service
| Others |
| MAAS | Monitoring As A Service
| Others |
| MAAS | Motor Activity Assessment Scale
| Others |
| MAAS | Multi Axis Acceleration Sensor
| Others |
| MAAS | Multicast Address Allocation Server
| Others |
| MAASM | Multi Axis Acceleration Sensor Module
| Others |
| MAASON | Marketing Affordable Analysis Standard Organizing Network
| Others |
| MAASP | Mankato Area Adaptive Ski Program
| Others |
| MAASP | Maximum Allowable Annulus Surface Pressure
| Others |
| MAASP | Mobile as a Service Provider
| Others |
| MAAST | Marine Aquarists Association of South Texas
| Others |
| MAAST | Marine Aquarium Association of South Texas
| Others |
| MAAST | Matlab Algorithm Availability Simulation Tool
| Others |
| MAAST | Milwaukee Academy Of Aviation Science Technology
| Others |
| MAAST | MOLA Academy for Archaeological Specialist Training
| Others |
| MAAST | MOLA Academy of Archaeological Specialist Training
| Others |
| MAAST | Music and Audio Arts Sound Theatre
| Others |
| MAASTO | Mid America Association of State Transportation Officials
| Others |
| MAAT | Manual Authoring and Assessment Tool
| Others |
| MAAT | Mean Annual Air Temperature
| Others |
| MAAT | Member of Association of Accounting Technicians
| Others |
| MAAT | Metadata Architecture and Application Team
| Others |
| MAAT | Microbiota as a Therapy
| Others |
| MAAT | Microsoft and Accounting Application Training
| Others |
| MAAT | Microsoft Azure Architect Technologies
| Others |
| MAAT | Minimum Average Annual Turnover
| Others |
| MAAT | Multi Altitude Assault Transport
| Others |
| MAAT | Multi-Altitude Assault Transport
| Others |