| Acronym | Definition |
|---|
| MRCI | Microsoft Realtime Compression Interface |
| MRCI | Ministère des Relations avec les Citoyens et de l'Immigration (Ministry for Citizen Relations and Immigration, Quebec) |
| MRCI | Microelectronics Research and Communications Institute |
| MRCI | Migrant Rights Centre Ireland |
| MRCI | Multi-Reference Configuration Interaction |
| MRCI | Modular Reconfigurable C4I Interface |
| MRCI | Mankato Rehabilitation Center, Inc (Mankato, MN) |
| MRCI | Mine Readiness Certification Inspection |
| MRCI | Mississippi River Conservation Initiative |
| MRCI | Market Research & Consumer Intelligence |