| Acronym | Definition |
|---|
| IRBD➣International River Basin District (various locations) |
| IRBD➣International Review of Bipolar Disorders |
| IRBD➣International Root Beer Day (December 4th) |
| IRBD➣Independent Review of Bangladesh Development (annual report; Centre for Policy Dialogue; Dhaka, Bangladesh) |
| IRBD➣Improved Reliability Block Diagram |