| Term | Full Form | Category |
|---|---|---|
| USMB | Ultimate Subaru Message Board | Others |
| USMB | Uncle Sam's Misguided Brewery | Others |
| USMB | United States - Mexico Border | Others |
| USMB | United States Marine Band | Others |
| USMB | United States Marine Barracks, Washington, D. C. | Others |
| USMB | United States Metric Board | Others |
| USMB | United States Mormon Battalion | Others |