| MAGMA | Magnanimous Advocates Generating Mental Awareness 
| Others |
| MAGMA | Michigan Academy for Green Mobility Alliance
| Others |
| MAGMA | Michigan Alliance for Greater Mobility Advancement
| Others |
| MAGMA | Mid America Gospel Music Association
| Others |
| MAGMA | Milwaukee Area Game Maniac Agency
| Others |
| MAGMA | Minimal Architecture for Generalized Markup Applications
| Others |
| MAGMA | Molecular Animation, Graphics and Modelling Application
| Others |
| MAGMA | Multicultural Association of the Greater Moncton Area
| Others |