| Acronym | Definition |
|---|
| UPCO➣Universidad Pontificia de Comillas (Catholic university; Madrid, Spain) |
| UPCO➣Utila Power Company (Utila, Honduras) |
| UPCO➣United Pharmacal Co. |
| UPCO➣Universal Propulsion Company, Inc. |
| UPCO➣Under Pressure Cut Off (valve) |
| UPCO➣Unilateral Posterior Semicircular Canal Occlusion (biomedical sciences) |