| MACH | Martin Army Community Hospital 
| Others |
| MACH | Master Agility Champion
| Others |
| MACH | Maximum Average Correlation Height
| Others |
| MACH | Metal Alternative Crossover Hiphop
| Others |
| MACH | Microkernel Architectures Considered Harmful
| Others |
| MACH | Microsoft Academy for College Hires
| Others |
| MACH | Military Advanced Combat Helmet
| Others |
| MACH | Military Air Command Hunter
| Others |
| MACH | Millenium, Athens, Covert, Harquahala
| Others |
| MACH | Modelo Acoplado de Coordinacion Hidrotermica
| Others |
| MACH | Motion Accelerating Hyper-Pixel
| Others |
| MACH | Multi Layer Actuator Head
| Others |
| MACH | Multifaced Asymmetrical Configuration Hyper-Pixel
| Others |
| MACH | Multiple Advanced Computers for Hypersonics
| Others |
| MACH | Velocity Relative to the Speed of Sound
| Others |