MOSB
| Acronym | Definition |
|---|---|
| MOSB | Military Order of the Stars and Bars (descendants of Confederate officers) |
| MOSB | Microsoft OEM (Original Equipment Manufacturer) System Builder (hardware manufacturing) |
| MOSB | Minority-Owned Small Business |
| MOSB | Multi-Operations Support Building (NASA) |
| MOSB | Military Occupational Specialty Handbook |