MIWA
| Acronym | Definition |
|---|---|
| MIWA | Marine and Inland Waters Administration (State Environmental Service; Ministry of Environment; Latvia) |
| MIWA | Michelangelo International Wine Awards (est. 1997) |
| MIWA | Maine Injured Workers Association |
| MIWA | Merritt Island Wildlife Association |
| MIWA | Municipal and Industrial Water Authority (Texas) |
| MIWA | Materials Institute of Western Australia |