| Acronym | Definition |
|---|
| IRRA➣Institutional Repositories and Research Assessment (UK) |
| IRRA➣Increasing Relative Risk Aversion |
| IRRA➣Institute for Reliability and Risk Analysis |
| IRRA➣Individual Retirement Rollover Account (financial) |
| IRRA➣International Resort and Retailers Association |
| IRRA➣Industrial Relations and Research Association |
| IRRA➣Integrated Radio Resource Allocation |
| IRRA➣International Retro Racing Association |