| Abbreviation | Definition |
|---|---|
| MACCA | Markham African Caribbean Canadian Association |
| MACCA | Muslim Associations for Climate Change Action |
| MACCE | Maine Association of Chamber of Commerce Executives |
| MACCE | Maryland Association of Chamber of Commerce Executives |
| MACCE | Massachusetts Association of Chamber of Commerce Executives |
| MACCE | Massachusetts Association of Chambers of Commerce Executives |
| MACD | Merchants Association Collection Division |
| MACD | Michigan Association of Conservation Districts |
| MACD | Mississippi Association Of Conservation Districts |
| MACDS | Montana Association of Community Disability Services |
| MACHO | Maryland Association of County Health Officers |
| MACI | Massachusetts Association for the Chemically Injured |
| MACIA | Midwest Association of Crime and Intelligence Analysts |
| MACMA | Michigan Agricultural Cooperative Marking Association |
| MACMA | Mid Atlantic Club Management Association |
| MACN | Missouri Association of Crisis Negotiators |
| MACO | Minnesota Association of County Officers |
| MACOP | Montana Association of Chiefs Of Police |
| MACP | Michigan Association of Chamber Professionals |
| MACP | Musculoskeletal Association of Chartered Physiotherapists |