MWIA
| Acronym | Definition |
|---|---|
| MWIA | Medical Women's International Association (Germany) |
| MWIA | Malaysian Wood Industries Association |
| MWIA | Muslim Women in the Arts (est. 1999) |
| MWIA | Mortally Wounded in Action |
| MWIA | Michigan Waste Industries Association (Lansing, MI) |
| MWIA | Mount Washington Improvement Association (Baltimore, MD) |