MCWA
| 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) |