| IBO | International Broadcasting Organization | 国际广播组织 |
| IBO | Ibo, Mozambique | 莫桑比克伊博 |
| IBO | Independent Business Operators | 独立运营商 |
| IBO | Initial Buy-Out | 首次买断 |
| IBO | Internal Body Organs | 体内器官 |
| IBO | Independent Business Owners | 独立企业主 |
| IBO | Imis Business Objects | Imis业务对象 |
| IBO | Internet Business Owner | 互联网企业所有者 |
| IBO | Intelligence Brought Online Corporation | 情报在线公司 |
| IBO | Independent Budget Office (New York City) | 独立预算办公室（纽约市） |
| IBO | International Biology Olympiad | 国际生物奥林匹克竞赛 |
| IBO | Interdepartementale Beleidsonderzoek (Dutch) | 部门间Beleidsonderzoek（荷兰语） |
| IBO | International Baccalaureate Organization | 国际文凭组织 |
| IBO | Independent Business Owner | 独立企业主 |
| IBO | Infrastructure Business Operations | 基础设施业务运营 |
| IBO | Instructor Boom Operator (USAF) | 教员动臂操作员（美国空军） |
| IBO | Image Based Object | 基于图像的对象 |
| IBO | Internet Backbone Operations | 互联网骨干运营 |
| IBO | Igbo | 伊博 |
| IBO | Integrated Beverage Operation | 综合饮料运营 |
| IBO | Information Based Organization | 基于信息的组织 |
| IBO | ibotenic acid | 核糖核酸 |
| IBO | International Boxing Organization (Coral Gables, FL) | 国际拳击组织（佛罗里达州珊瑚山墙） |
| IBO | Investors Buy-Out | 投资者买断 |
| IBO | International Bowhunting Organization (Vermilion, OH) | 国际猎弓组织（俄亥俄州朱美里昂） |
| IBO | Input Back-Off (satellite communications) | 输入回退（卫星通信） |