| Acronym | Definition |
|---|
| MCAG➣Merced County Association of Governments (California) |
| MCAG➣Maritime Civil Affairs Group |
| MCAG➣Managed Care Advisory Group (healthcare and provider rights advocate; Sylvania, OH) |
| MCAG➣Maury County Arts Guild (Columbia, TN) |
| MCAG➣Moto Clube Amigos do Garfo |
| MCAG➣Medical Center Administrative Group (University of Rochester Medical Center; New York) |