MHSI
| Acronym | Definition |
|---|---|
| MHSI | Mine Health and Safety Inspectorate (South Africa) |
| MHSI | Material Handling Systems, Inc. (Rochester Hills, MI) |
| MHSI | Milwaukee Health Services, Inc. (Wisconsin) |
| MHSI | Michigan Head and Spine Institute (Pontiac, MI) |
| MHSI | Mason & Hanger Services Inc. |
| MHSI | Management of Head and Spinal Injuries |