| Abbreviation | Definition |
|---|---|
| MSAI | Mobile Standards Alliance of India |
| MSRA | Microsoft Security Response Alliance |
| MTOA | Middle Tennessee Orphan Alliance |
| MUA | Marvel Ultimate Alliance |
| MVMA | Miami Valley Mesh Alliance |
| MWA | Metropolitan Waterfront Alliance |
| MWA | Millennium Water Alliance |
| MWA | Mobile Workers Alliance |
| MWHA | Mary Washington Health Alliance |
| MWHA | Mount Washington Homeowners Alliance |
| MWHA | Mt Washington Homeowners Alliance |
| MYMA | Methodist Youth Ministry Alliance |
| NAA | National Agents Alliance |
| NAA | New America Alliance |
| NAAR | National Alliance of Autism Research |
| NAAT | National Alliance Against Tolls |
| NABA | National Alliance for Breastfeeding Advocacy |
| NABB | National Alliance of Burmese Breeders |
| NABL | National Alliance of Basketball Leagues |
| NAC | National Alliance for Caregiving |