| Acronym | Definition |
|---|
| MCWA➣Monroe County Water Authority (New York) |
| MCWA➣Michigan Championship Wrestling Association |
| MCWA➣McHenry County Wireless Association (Illinois; amateur radio) |
| MCWA➣Macedonian Community Welfare Association (Australia) |
| MCWA➣Medical Centers of West Africa (Baton Rouge, LA; Meskine, Cameroon) |
| MCWA➣Monocacy & Catoctin Watershed Alliance (Maryland) |
| MCWA➣Monocacy Creek Watershed Association (Pennsylvania) |