MWIS
| Acronym | Definition |
|---|---|
| MWIS | Mountain Weather Information Service (UK) |
| MWIS | Mission World Information Service |
| MWIS | Maximum Weight Independent Set |
| MWIS | Minority Women in Science (Washington, DC) |
| MWIS | Marine WWMCCS Information System |
| MWIS | Materials Writers Interest Section (Teaching of English to Speakers of Other Languages) |