| Abbreviation | Definition |
|---|---|
| MCCF | Mecosta County Community Foundation |
| MCCF | Melissa Cosgrove Children's Foundation |
| MCCF | Montgomery County Community Foundation |
| MCCF | Muskingum County Community Foundation |
| MCEF | Miller Community Education Foundation |
| MCEF | Monroe County Education Foundation |
| MCEF | Montgomery County Educational Foundation |
| MCF | Madison Community Foundation |
| MCF | Marin Community Foundation |
| MCF | Meta Coach Foundation |
| MCF | Michigan Cancer Foundation |
| MCF | Minnesota Council on Foundations |
| MCFA | Maryland Community Foundations Association |
| MCFA | Mitsubishi Corporation Foundation for the Americas |
| MCFF | Maricopa Colleges Faculty Foundation |
| MCIF | Missionary Church Investment Foundation |
| MCIF | Montana Cancer Institute Foundation |
| MCLF | Mackinac Center Legal Foundation |
| MCLF | Marin County Library Foundation |
| MCLF | Mike Clark Legacy Foundation |