| IBR | Image Based Rendering | 影像透视图 |
| IBR | Iron Butt Rally (Iron Butt Association motorcycle event) | 铁屁股拉力赛（铁屁股协会摩托车赛事） |
| IBR | Integrated Baseline Review | 综合基线审查 |
| IBR | Indian Boiler Regulation (Act) | 印度锅炉法规（法案） |
| IBR | Internal Baseline Review | 内部基线审查 |
| IBR | Institute for Biblical Research | 圣经研究所 |
| IBR | It's Been Real | 它是真实的 |
| IBR | Incorporated By Reference | 通过引用合并 |
| IBR | Incident Based Reporting | 基于事件的报告 |
| IBR | Intra-Base Radio | 基地内部无线电通信 |
| IBR | Investment Budget Review | 投资预算审查 |
| IBR | Intelligence Broadcast Receiver | 智能广播接收机 |
| IBR | Institute of Behavioral Research | 行为研究所 |
| IBR | Installation Business Reform | 安装业务改革 |
| IBR | Institute of Byzantine Research (Athens, Greece) | 拜占庭研究所（希腊雅典） |
| IBR | Internal Budget Review | 内部预算审查 |
| IBR | Incident-Based Reporting (crime statistics reporting to replace the UCR) | 基于事件的报告（取代UCR的犯罪统计报告） |
| IBR | Image-Based Rendering | 基于图像的渲染 |
| IBR | Infectious Bovine Rhinotracheitis | 牛传染性鼻气管炎 |
| IBR | International Bear Rendezvous | 国际熊交会 |
| IBR | Inappropriate Behavior Referral | 不当行为推荐 |
| IBR | In-Band Request | 带内请求 |
| IBR | Inverted Box Rib (building material) | 倒箱形肋（建筑材料） |
| IBR | Inclusion Body Rhinitis | 包涵体鼻炎 |
| IBR | Initial Baseline Review | 初始基线审查 |
| IBR | Innovation and Business Relations | 创新与商业关系 |
| IBR | International Bull Riding | 国际斗牛 |
| IBR | Integrally Bladed Rotor (jet engine part) | 整体叶片转子（喷气发动机部件） |
| IBR | Investment Balance Review | 投资平衡审查 |
| IBR | Internet Background Radiation | 互联网背景辐射 |