| MCCR | Machine Check Recording and Recovery 
| Others |
| MCCR | Management Command and Control Re
| Others |
| MCCR | Manager of Community and Corporate Relations
| Others |
| MCCR | Manchester Council for Community Relations
| Others |
| MCCR | Manipal Centre for Clinical Research
| Others |
| MCCR | Manual Closed Circuit Rebreather
| Others |
| MCCR | Marine Corps Cybersecurity Range
| Others |
| MCCR | Maryland Commission on Civil Rights
| Others |
| MCCR | Medical Care Cost Recovery
| Others |
| MCCR | Medical Center for Clinical Research
| Others |
| MCCR | Medical Committee for Civil Rights
| Others |
| MCCR | Mediterranean Center for Cancer Research
| Others |
| MCCR | Methods in Clinical Cancer Research
| Others |
| MCCR | Metropolitan Community Church of the Rockies
| Others |
| MCCR | Mexico Centre for Clinical Research
| Others |
| MCCR | Miner County Community Revitalization
| Others |
| MCCR | Ministry of Consumer Commercial Relations
| Others |
| MCCR | Minneapolis Commission on Civil Rights
| Others |
| MCCR | Mission Critical Computer Resources
| Others |
| MCCR | Molecular and Clinical Cancer Research
| Others |
| MCCR | Monaro Committee for Cancer Research
| Others |
| MCCR | My Care Choices Register
| Others |
| MCCR | Myanmar Consortium for Community Resilience
| Others |