| Acronym | Definition |
|---|
| UIR➣Usb to Infrared Adapter |
| UIR➣Universal Infrared Receiver |
| UIR➣Umatilla Indian Reservation (Oregon) |
| UIR➣University-Industry Relations (various schools) |
| UIR➣Upper Flight Information Region |
| UIR➣United Islamic Republic (fictional organization) |
| UIR➣Unusual Incident Report |
| UIR➣Unitary Irreducible Representation (mathematics) |
| UIR➣User Interface Requirement |
| UIR➣Wire Connector (used on drawings, etc.; phonetically, UIR sounds like 'wire') |
| UIR➣Uniform Impedance Resonator |
| UIR➣User Incident Report |
| UIR➣Unidentified Infrared Feature |
| UIR➣Unemployment Insurance Reporter (CCH) |