| Acronym | Definition |
|---|
| IRBC➣Infected Red Blood Cell |
| IRBC➣Irish Rare Birds Committee (est. 1971) |
| IRBC➣Immigration and Refugee Board of Canada |
| IRBC➣Iowa Regular Baptist Camp |
| IRBC➣International Rule Book Committee (est. 1996) |
| IRBC➣Iterative Robin Boundary Condition |
| IRBC➣Individual Red Blood Cell |