MFSO
| Acronym | Definition |
|---|---|
| MFSO | Military Families Speak Out |
| MFSO | Milwaukee FIRST Support Organization |
| MFSO | Missile Flight Safety Officer |
| MFSO | Menomonee Falls Symphony Orchestra |
| MFSO | Microbiological Food Safety Objective |
| MFSO | multiple-filter single-output |