IHRA
| Acronym | Definition |
|---|---|
| IHRA | International Hot Rod Association |
| IHRA | International Harm Reduction Association |
| IHRA | International Hotel & Restaurant Association |
| IHRA | International High-Speed Rail Association (Japan) |
| IHRA | International Human Rights Association (Delhi, India) |
| IHRA | International Harmonized Research Activities |
| IHRA | International Housewares Representatives Association |
| IHRA | International Human Resources Association |