| Acronym | Definition |
|---|
| MDW | Midway Airport |
| MDW | Meadow (street suffix) |
| MDW | Memorial Day Weekend |
| MDW | Military District of Washington (US DoD) |
| MDW | Mini Disc Writer |
| MDW | Mini Disc Walkman |
| MDW | Michael D. Wilson (George) |
| MDW | Medical Wing |
| MDW | More Developed World |
| MDW | Municipal Drinking Water |
| MDW | Chicago, IL, USA - Midway (Airport Code) |
| MDW | Municipal Dataworks (municipalities asset management) |
| MDW | Mass Destruction Weapon(s) |
| MDW | Measured Day Work |
| MDW | Marketing Data Warehouse |
| MDW | Minnesota, Dakota, and Western Railroad |
| MDW | Mattress Discount Warehouse (Crystal Lake IL) |