ORU
| Acronym | Definition |
|---|---|
| ORU | Oral Roberts University (Tulsa, Oklahoma) |
| ORU | Operation Round Up (various organizations) |
| ORU | Oncology Research Unit (various locations) |
| ORU | Orbital Replacement Unit |
| ORU | Organized Research Unit(s) |
| ORU | Old Russian (linguistics) |
| ORU | Orbital Replaceable Unit |
| ORU | Orbiter Replacement Unit |