| Abbreviation | Definition |
|---|---|
| MWA | Musconetcong Watershed Association |
| MWAA | Mental Wellness Awareness Association |
| MWAA | Midwest Water Analysts Association |
| MWAB | Medical Women Association Belgium |
| MWAD | Media Workers Association of Dominica |
| MWAS | Metabolome wide association studies |
| MWHA | Markland Wood Homeowners Association |
| MWHA | Maryland Western Horse Association |
| MWHA | Minecraft Weather and Hurricane Association |
| MWHA | Minnesota Walking Horse Association |
| MWNA | Manly Warringah Netball Association |
| MWRA | Metropolitan Water Resource Association |
| MWSA | Massachusetts Woman Suffrage Association |
| MWSA | Minnesota Woman Suffrage Association |
| MWTA | Mid West Truckers Association |
| MWTA | Minnesota World Trade Association |
| MWVA | Manly Warringah Volleyball Association |
| MWVA | Myanmar War Veterans Association |
| MYLA | Macedonian Young Lawyers Association |
| MYMA | My Young Mind Association |