OMHC
| Acronym | Definition |
|---|---|
| OMHC | Original Manufacture Hard Case (musical instruments) |
| OMHC | Ohio Manufactured Homes Commission (Dublin, OH; building regulation) |
| OMHC | Olympus Managed Health Care (Miami, FL) |
| OMHC | Ontario Morgan Horse Club (est. 1968; Canada) |
| OMHC | Odessa Memorial Healthcare Center (Odessa, WA) |
| OMHC | Outpatient Mental Health Centers |
| OMHC | Ontario Marine Heritage Committee (Canada) |