| IGRS | Illiana Garden Railway Society | 伊利亚那花园铁路协会 |
| IGRS | Irish Graves Registration Society | 爱尔兰坟墓登记协会 |
| IGRS | Integrated GPS Radio System (developed by Stanford Research Institute) | 集成GPS无线电系统(斯坦福研究所开发) |
| IGRS | Information Gateway Resource Sharing | 信息网关资源共享 |
| IGRS | Information Group Resource System | 信息组资源系统 |
| IGRS | IronWood Guide to Railway Safety | 铁木铁路安全指南 |
| IGRS | Integrated Gas Recovery Services Inc. (Thorold ON, Canada) | 综合天然气回收服务公司(加拿大托罗德岛) |
| IGRS | Infant Gastric Reflux Stories (New Zealand) | 婴儿胃反流故事(新西兰) |
| IGRS | Information Gathering and Retrieval System (US IRS) | 信息收集和检索系统(美国国税局) |
| IGRS | Iraqi Geospatial Reference System | 伊拉克地理空间参考系统 |
| IGRS | imidazoline-guanidinium receptive site (membrane-bound protein) | 咪唑啉胍接受位点(膜结合蛋白) |
| IGRS | Intelligent Grouping and Resource Sharing | 智能分组和资源共享 |
| IGRS | Intelligence and Geographic Resources Staff (UK MoD) | 情报和地理资源人员(英国国防部) |
| IGRS | Intergovernmental Review System | 政府间审查制度 |
| IGRS | Irish Genealogical Research Society (UK) | 爱尔兰家谱研究学会(英国) |
| IGRS | Iron Gate Reservoir Surface | 铁门水库表面 |
| IGRS | Institute of Germanic and Romance Studies (UK) | 日耳曼和浪漫主义研究所(英国) |
| IGRS | image-guided radiosurgery | 图像引导放射外科 |
| IGRS | IRS Intelligence Gathering and Retrieval System | IRS情报收集和检索系统 |
| IGRS | Institute of Geoinformatics & Remote Sensing | 学院的教育及遥感技术 |