| Acronym | Definition |
|---|
| MRIS➣Metropolitan Regional Information Systems |
| MRIS➣Magnetic Resonance Imaging and Spectroscopy |
| MRIS➣Medically Recommended Intensive Supervision (parole) |
| MRIS➣Multi-Racial Information Systems (South Africa) |
| MRIS➣Modernization Resource Information System |
| MRIS➣Material Readiness Index System |
| MRIS➣Microwave Reflectometer Ionization Sensor |
| MRIS➣Mission Requirements Information System (Space Station) |
| MRIS➣Minimum Register Instruction Sequence |
| MRIS➣Mineral Rights Information System |
| MRIS➣Materiel Readiness Information System |