| 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 |
| MAAT | Multibody Advanced Airship for Transport
| Others |
| MAAT | Museu de Arte Arquitetura e Tecnologia
| Others |
| MAAT | Museum of Art Architecture and Technology
| Others |