| IDRA | International Digital Radio Association | 国际数字无线电协会 |
| IDRA | International Disaster Recovery Association | 国际灾难恢复协会 |
| IDRA | Interior Department Recreation Association | 内政部娱乐协会 |
| IDRA | Intercultural Development Research Association | 跨文化发展研究协会 |
| IDRA | Inverhuron District and Ratepayers Association | Inverhuron区和纳税人协会 |
| IDRA | Island Drag Racing Association | 海岛飙车协会 |
| IDRA | Intermediate Data Recovery and Analysis course | 中间数据恢复和分析课程 |
| IDRA | Idera Pharmaceuticals, Inc. | Idera制药公司。 |
| IDRA | Institute for Development Research and Alternatives | 发展研究和替代方案研究所 |
| IDRA | Integrated Dispatch Radio System | 综合调度无线电系统 |