| Acronym | Definition |
|---|
| MCWG➣Meta Computing Working Group |
| MCWG➣Mound Cotton Wollan & Greengrass (law firm; various locations) |
| MCWG➣Macedonian Telegraphic Group (est. 1994) |
| MCWG➣Moroccan Community Welfare Group |
| MCWG➣Military Cooperation Working Group |
| MCWG➣Motorcycle Working Group (EU; emission standards and safety regulation) |
| MCWG➣Minnesota Climatology Working Group (University of Minnesota) |
| MCWG➣MILSTAR COMSEC Working Group |
| MCWG➣Military Construction Working Group |
| MCWG➣Motorcycle with Gear |