MCIU
| Acronym | Definition |
|---|---|
| MCIU | Manipulator Controller Interface Unit |
| MCIU | Montgomery County Intermediate Unit (school district support; Norristown, PA) |
| MCIU | Major Collision Investigation Unit (Australia) |
| MCIU | Manipulator Controller Interface Unit (US NASA) |
| MCIU | Major Crime Investigation Unit (various locations) |