| Acronym | Definition |
|---|
| IRRR➣Interest Rate Reduction Refinance |
| IRRR➣Industrial Relations Review and Report (Industrial Relations Services; London, UK) |
| IRRR➣Institute for Regional and Rural Research (University of Ballarat; Australia) |
| IRRR➣Indigenous Remote Radio Replacement (Department of Communications, Information Technology and the Arts; Australia) |
| IRRR➣Insulin Receptor-Related Receptor |