UCIR
| Acronym | Definition |
|---|---|
| UCIR | Union County Industrial Railroad Co. |
| UCIR | Unione Costruttori Italiani Ruote (Italian: Union of Italian Wheels; Milan, Italy) |
| UCIR | University Center for Instructional Resources (Pittsburgh, PA) |
| UCIR | Utero-Cervical Inhibitory Reflex (gynecology) |