| Abbreviation | Definition |
|---|---|
| MCC | Muslim Community Center |
| MCCA | Mt Calvary Christian Academy |
| MCCF | Mandarin Chinese Christian Fellowship |
| MCCF | Manhattan Chinese Christian Fellowship |
| MCCJ | Miami Coalition of Christians and Jews |
| MCCL | Muslim Community Center of Leesburg |
| MCCLA | Metropolitan Community Church Los Angeles |
| MCDP | Missionary Catechists of Divine Providence |
| MCEC | Mennonite Church Eastern Canada |
| MCES | Monroe Catholic Elementary Schools |
| MCFS | Mississauga Christian French School |
| MCG | Muslim Consumer Group |
| MCH | Missionary Children's Home |
| MCHS | Malden Catholic High School |
| MCHS | Marian Catholic High School |
| MCHS | Marquette Catholic High School |
| MCHS | Mcauley Catholic High School |
| MCHS | Monroe Catholic High School |
| MCHS | Moore Catholic High School |
| MCII | Mission Churches International, Incorporated |