| IOB | Intelligence Oversight Board | 情报监督委员会 |
| IOB | Input/Output Buffer | 输入/输出缓冲器 |
| IOB | Indian Overseas Bank | 印度海外银行 |
| IOB | Institute of Banking (Saudi Arabia) | 银行学会（沙特阿拉伯） |
| IOB | 3d graphics database in TDDD format | TDDD格式的三维图形数据库 |
| IOB | Index Out Of Bounds | 索引超出范围 |
| IOB | Input/Output Bridge | 输入/输出桥 |
| IOB | Insulin on Board | 船上胰岛素 |
| IOB | Inter-Organization Board for Information Systems | 信息系统组织间委员会 |
| IOB | Input Output Buffer | 输入输出缓冲区 |
| IOB | Institute of Building (former name of the Chartered Institute of Building) | 建筑学会（特许建筑学会的前身） |
| IOB | Institute of Biology | 生物研究所 |
| IOB | Industrial Order of Battle | 工业战斗秩序 |
| IOB | Input/Output Block (in FPGA) | 输入/输出(在FPGA) |
| IOB | Impact of Build | 构建的影响 |
| IOB | Iranian Oil Bourse | 伊朗石油交易所 |
| IOB | Installation Operating Budget | 安装工作预算 |
| IOB | Iron Ore Beneficiation | 铁矿石选矿 |
| IOB | International Order Book (London Stock Exchange) | 国际订单簿（伦敦证券交易所） |
| IOB | Inorganic, Organometallic and Bioinorganic Chemistry | 无机、有机金属和生物无机化学 |
| IOB | Intelligence Oversight Board (part of President's Foreign Intelligence Advisory Board, PFIAB) | 智能监督委员会(部分总统外国情报谘询委员会,PFIAB) |
| IOB | Internal Operating Budget | 内部运营预算 |
| IOB | Interoperability Branch | 互操作性分支 |