| Acronym | Definition |
|---|
| MACo➣Maryland Association of Counties |
| MACo➣Master Ad Public Company Limited |
| MACo➣Maximum Allowable Carryover |
| MACo➣Military Assault Command Operations (gaming) |
| MACo➣Mars Atmospheric Constellation Observatory |
| MACo➣Medallic Art Company |
| MACo➣Marshalling Area Control Officer |
| MACo➣Management and Community Organization Concentration |