| IPO | International Projects Office | 国际规划局 |
| IPO | Initial Public Offering | 初次公开发行；首次公开招股 |
| IPO | Intellectual Property Owners Association (Washington, DC USA) | 知识产权所有者协会（美国华盛顿特区） |
| IPO | Initial Public Offer(ing) (new stocks) | 首次公开募股（新股） |
| IPO | Improved Pregnancy Outcome | 改善妊娠结局 |
| IPO | Intellectual Property Office | 知识产权局 |
| IPO | Integrated Program Office | 综合项目办公室 |
| IPO | Input Process Output | 输入过程输出 |
| IPO | Illustrative Purposes Only | 仅用于说明目的 |
| IPO | International Progress Organization | 国际进步组织 |
| IPO | Input, Processing, and Output (requirements of a program) | 输入、处理和输出（程序要求） |
| IPO | Israel Philharmonic Orchestra | 以色列爱乐乐团 |
| IPO | Institutional Program Office | 机构项目办公室 |
| IPO | International Permanent Observatory (on Security During Major Events; UNICRI) | 国际常设观察站（重大活动期间的安全；犯罪司法所） |
| IPO | Instituto PortuguÊs de Oncologia (Portugese: Portugese Institute of Oncology) | Instituto PortuguÊs de Oncologia (Portugese: Portugese Institute of Oncology) |
| IPO | Indian Intellectual Property Office | 印度知识产权局 |
| IPO | Industrial Property Officer (NASA) | 工业产权官员（NASA） |
| IPO | Internet Powered by Oracle | Oracle支持的Internet |
| IPO | Iterative Physical Optics | 迭代物理光学 |
| IPO | Indian Postal Order | 印度邮政订单 |
| IPO | International Purchasing Office | 国际采购办公室 |
| IPO | Ideological Political And Organizational | 思想政治与组织 |
| IPO | Internet Porn Observer | 互联网色情观察家 |
| IPO | Internationale Prufungs Ordnung | 国际秩序 |
| IPO | Intercept Point Optimization | 拦截点优化 |
| IPO | Infrastructure Production Operations | 基础设施生产运营 |
| IPO | Immediate Profit Opportunity | 立即盈利机会 |
| IPO | Internet Phase One | 互联网第一阶段 |
| IPO | Initial Player Offering | 初始玩家产品 |
| IPO | Internet Protocol Over | 通过Internet协议 |
| IPO | Instant Porsche Owner | 即时保时捷车主 |
| IPO | Internationale Pruefungs Ordnung | 国际秩序 |
| IPO | I Peek Out | 我偷窥 |
| IPO | Initial Public Office | 初始公共办公室 |
| IPO | Institutional Parole Officer | 机构假释官 |
| IPO | Initial Public Offering. | 首次公开募股。 |
| IPO | Insane Peoples Outing | 疯狂的人外出 |
| IPO | Input Processing And Output | 输入处理和输出 |
| IPO | Investment Process Outsourcing | 投资流程外包 |
| IPO | Immediate Profit Opportunities | 即时盈利机会 |
| IPO | International Procurement Office | 国际采购办公室 |
| IPO | It's Probably Overpriced | 它可能是太高了 |
| IPO | In-Process Overview | 过程中概述 |
| IPO | Input Processing Output | 输入处理输出 |
| IPO | Indice Pollution Organique (French: topographical index of organic pollution of water) | 有机污染指数（法语：水的有机污染地形指数） |
| IPO | Interest Paid On | 利息支付日期 |
| IPO | Investing Pays Off (Merrill Lynch) | 投资回报（美林） |
| IPO | Installation Productivity Option | 安装生产力选项 |
| IPO | International Police Organization | 国际警察组织 |
| IPO | Investing Pays Off | 投资回报 |
| IPO | International Programs Office (US Navy) | 国际计划办公室（美国海军） |
| IPO | Internet Protocol Over Optical (IETF) | 光因特网协议（IETF） |
| IPO | Its Probably Overpriced | 它可能定价过高 |
| IPO | Information Protection Office (USAF) | 信息保护办公室（USAF） |
| IPO | International Pasta Organisation | 国际面食组织 |
| IPO | International Program Office (US DoD) | 国际计划办公室（美国国防部） |
| IPO | Initial Phase Onset | 初始阶段开始 |
| IPO | Indirect Program Office | 间接项目办公室 |
| IPO | Individual Pays Own (meeting planning) | 个人自付（会议计划） |
| IPO | IGES/PDES Organization | IGES /方向的组织 |
| IPO | Industrial Partnership Office | 工业合作办公室 |
| IPO | International Press Organization | 国际新闻组织 |
| IPO | Inter Procedural Optimization (Intel C++ Compiler) | 国米程序优化(英特尔c++编译器) |
| IPO | Individual Performance Objective | 个人绩效目标 |
| IPO | Intellectual Property Organization | 知识产权组织 |
| IPO | Illinois Periodicals Online | 伊利诺伊州在线期刊 |
| IPO | Interprovinciaal Overleg (Netherlands) | 省际Overleg（荷兰） |
| IPO | International Pact Organization | 国际公约组织 |
| IPO | International Powerlifting Organization | 国际动力提升组织 |
| IPO | Industrial Preparedness Operations | 工业准备操作 |
| IPO | Independent Practice Organization | 独立执业机构 |
| IPO | Industry Portfolio Office (Canada) | 行业投资组合办公室（加拿大） |
| IPO | Instrument Project Office | 仪表项目办公室 |
| IPO | Instrumental Performing Organization (The Hartt School, University of Hartford, West Hartford, CT) | 器乐表演组织（康涅狄格州西哈特福德哈特福德大学哈特特学院） |
| IPO | In-Place-Optimization | 就地优化 |
| IPO | Intervening Protection Optical (Pirelli) | 干涉保护光学（倍耐力） |
| IPO | International Project Office | 国际项目办公室 |
| IPO | Internal Purchase Order | 内部采购订单 |
| IPO | Integrated Product Ownership (defense program management) | 综合产品所有权（国防项目管理） |