| Acronym | Definition |
|---|
| OCH➣On-Campus Housing (various schools) |
| OCH➣Old Custom House (various locations) |
| OCH➣Optical Channel |
| OCH➣Office of Community Health (est. 2005; Stanford University School of Medicine; Stanford, CA) |
| OCH➣Obstacle Clearance Height (aviation) |
| OCH➣O'Connell House (various locations) |
| OCH➣Oktibbeha County Hospital (Mississippi) |
| OCH➣Our Children's Homestead (Naperville, IL) |
| OCH➣Old Charlotte Highway Campus (South Piedmont Community College; Monroe, NC) |
| OCH➣Our Coupon Home (website) |
| OCH➣Operators Clearing House |
| OCH➣Optical Channel Interface (Cienna) |