| IRON | Interrange Operations Number | 区间操作编号 |
| IRON | Ironstone Group, Inc. | 铁石集团。 |
| IRON | International Rice Observational Nursery | 国际水稻观察苗圃 |
| IRON | Independent Root Operator's Network | 独立的根操作员的网络 |
| IRON | Internal Robustness (computer file systems) | 内部健壮性（计算机文件系统） |
| IRON | Inspect and Repair Only as Needed | 仅根据需要进行检查和维修 |
| IRON | Independent Republic of Orange Nations (online gaming) | 橙色国家独立共和国（在线游戏） |