| Abbreviation | Definition |
|---|---|
| MRBC | Miles Road Baptist Church |
| MRBC | Muldoon Road Baptist Church |
| MRCC | Memorial Road Church of Christ |
| MSBC | Maggie Street Baptist Church |
| MSBC | Morse Street Baptist Church |
| MSBC | Mount Sinai Baptist Church |
| MSBC | Mt Sinai Baptist Church |
| MSCCS | Miami Shores Community Church School |
| MSCM | Master of Science in Church Management |
| MSHCA | Mount Sinai Holy Church of America |
| MSMBC | Morning Star Missionary Baptist Church |
| MSPC | Miami Shores Presbyterian Church |
| MUBC | Milton Ulladulla Baptist Church |
| MUC | Montrose Uniting Church |
| MUMC | Macedonia United Methodist Church |
| MUMC | Mahomet United Methodist Church |
| MUMC | Manchester United Methodist Church |
| MUMC | Mandarin United Methodist Church |
| MUMC | Maumee United Methodist Church |
| MUMC | Medford United Methodist Church |