| 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) |