MBWG
| Acronym | Definition |
|---|---|
| MBWG | Methyl Bromide Working Group (Washington, DC) |
| MBWG | Maine Beer Writers' Guild (est. 2008) |
| MBWG | Mississippi Bat Working Group (est. 2001) |
| MBWG | Marine Biodiversity Working Group (UK) |
| MBWG | Model Building Working Group (Midwest Independent Transmission System Operator; St. Paul, MN) |
| MBWG | Multiple-Beam Waveguide |