| Acronym | Definition |
|---|
| MBSA➣Microsoft Baseline Security Analyzer |
| MBSA➣Majlis Bandaraya Shah Alam (Malaysia) |
| MBSA➣Modular Building Systems Association |
| MBSA➣Master Builders South Africa |
| MBSA➣Multicultural Business Student Association |
| MBSA➣Manual Business Systems Association |
| MBSA➣Medical Board of South Australia |
| MBSA➣Minority Business Students Association |
| MBSA➣Michigan Bean Shippers Association |
| MBSA➣Mokena Baseball Softball Association (Illinois) |
| MBSA➣Muslim Business Student Association |
| MBSA➣mBedded System Agent |
| MBSA➣Master of Business Student Association |
| MBSA➣Merchant Broking Services Australia Pty Ltd |
| MBSA➣Massachusetts Bay Sailing Association |
| MBSA➣Main Bus Switching Assembly |
| MBSA➣Meal Break Standby Allowance (obsolete) |
| MBSA➣Munitions Board Standards Agency |
| MBSA➣Model Based Scene Analysis |
| MBSA➣Meredith Bay Sailing Association (Meredith, NH) |