| Acronym | Definition |
|---|
| MESB➣Metropolitan Emergency Services Board (St. Paul, MN) |
| MESB➣Michigan Environmental Science Board |
| MESB➣Medical Education Standards Board (UK) |
| MESB➣Maintenance Engineering Sdn. Bhd. (est. 1995; Kuala Lumpur, Malaysia) |
| MESB➣Minnesota Emergency Services Board |
| MESB➣Management Engineering & Systems Branch |