| Acronym | Definition |
|---|
| MCCI | Mutuelle des Chambres de Commerce et d'Industrie (French: Mutual Chambers of Commerce and Industry) |
| MCCI | Multi Crew Co-Operation Instructor (various locations) |
| MCCI | McCormick Correctional Institution (South Carolina Department of Corrections) |
| MCCI | Molten Core Concrete Interaction |
| MCCI | Mission Capability and Compliance Inspection (US Air Force) |
| MCCI | Molten Corium-Concrete Interaction |
| MCCI | Monmouth County Correctional Institution (New Jersey) |
| MCCI | Mandaluyong Chamber of Commerce and Industry |
| MCCI | Multi-Channel Communications Interface |
| MCCI | Metro Cash Carry International (various locations) |
| MCCI | Motor Carrier Consultants, Inc. |
| MCCI | Mandane Chamber of Commerce and Industry (Philippines) |
| MCCI | Marion County Correctional Institution (Ocala, Florida) |