| Acronym | Definition |
|---|
| MCOA➣Multiple Congenital Ocular Anomalies (horses) |
| MCOA➣Mastiff Club Of America |
| MCOA➣Municipal Collections of America (Lansing, IL) |
| MCOA➣Mid Coast Officials Association (Melbourne, FL) |
| MCOA➣Mississippi Casino Operators Association (Biloxi, Mississippi) |
| MCOA➣Multicast Care-Of Address |
| MCOA➣Medical Care Operations Administration (Maryland) |
| MCOA➣Minnesota Chapter of ALOA (Associated Locksmiths of America; St. Paul, MN) |