| UIR | Indian River, Delaware, Delmarva Power 
| Others |
| UIR | Quirindi, New South Wales, Australia
| Others |
| UIR | Ulster Institutional Repository
| Others |
| UIR | Ultrasonic Inspection Report
| Others |
| UIR | Undoing Institutional Racism
| Others |
| UIR | Unemployment Insurance Reporter
| Others |
| UIR | Unidentified Infrared
| Others |
| UIR | Unified Intermediate Representation
| Others |
| UIR | Union of Independent Republics
| Others |
| UIR | Unisa Institutional Repository
| Others |
| UIR | Unitary Irreducible Representation
| Others |
| UIR | United Islamic Republic
| Others |
| UIR | Universal Industrial Refrigeration, Inc.
| Others |
| UIR | Universal Infrared Receiver
| Others |
| UIR | University of International Relations
| Others |
| UIR | University- Industry Relations
| Others |
| UIR | Unusual Incident Reporting
| Others |
| UIR | Upper Information Region
| Others |
| UIR | UROP In Residence
| Others |
| UIR | Usb to Infrared Adapter
| Others |
| UIR | User Interest Rating
| Others |
| UIR | User Interface Requirement
| Others |
| UIR | User Interface Research
| Others |
| UIR | Utah Intergovernmental Roundtable
| Others |
| UIR | Utility Installation Review
| Others |