OFRI
| Acronym | Definition |
|---|---|
| OFRI | Ontario Forest Research Institute (Ministry of Natural Resources; Canada) |
| OFRI | Old Frisian (linguistics) |
| OFRI | Office for Foreign Relations and Information (Czech Republic) |
| OFRI | Oregon Forest Restoration Initiative |
| OFRI | Oxygen Flow Rate Index (cardiovascular medicine) |
| OFRI | Oxygen-Mediated Free Radical Injury (cardiology) |