| ORB | Object Request Broker | 对象请求代理 |
| ORB | operation request block | 操作请求块 |
| ORB | Online Result Browser | 在线分数浏览 |
| ORB | Outreach Red Bank | 外联红银行 |
| ORB | Orebro, Sweden - Orebro (Airport Code) | Orebro,瑞典-Orebro(机场代码) |
| ORB | Online Resource Bank | 在线资源库 |
| ORB | Orebro, Sweden | 瑞典奥雷布罗 |
| ORB | Operating Resident Browser | 操作常驻浏览器 |
| ORB | Orbital Sciences Corporation | 轨道科学公司 |
| ORB | Office Repeater Bay | 办公室中继器间 |
| ORB | Offworld Resource Base | 海外资源基地 |
| ORB | Off-world Resource Base (game by Strategy First games) | 世界外资源基地(战略优先游戏) |
| ORB | Opinion Research Business | 意见研究业务 |
| ORB | Object Ring Buffer (earthquake software device) | 对象环形缓冲区(地震软件设备) |
| ORB | Ornate Rune Blade (Everquest game weapon) | 奥纳特符文之刃(Everquest游戏武器) |
| ORB | Observatoire Royal de Belgique (Royal Observatory of Belgium) | 比利时皇家天文台 |
| ORB | O-Ring Boss (hydraulic seal) | O形圈凸台(液压密封) |
| ORB | Ocean Resources Branch (Hawaii) | 海洋资源处(夏威夷) |
| ORB | Outside Reading Book | 课外读物 |
| ORB | Organic Radical Battery | 有机自由基电池 |
| ORB | Operational Review Board | 运营审查委员会 |
| ORB | Object Request Broker (CORBA) | 对象请求代理(CORBA) |
| ORB | Ostdeutscher Rundfunk Brandenburg (German Radio and TV Station) | 勃兰登堡广播电视台 |
| ORB | Officer Record Brief | 军官简历 |
| ORB | Optimization Research Bridge | 优化研究桥 |
| ORB | Organizational Retaliatory Behavior | 组织报复行为 |
| ORB | Online Reference Book | 在线参考书 |
| ORB | Oil Rub Bronze | 油擦青铜 |
| ORB | Orange Belt Stages (Visalia, CA) | 橙带阶段(加利福尼亚州维萨利亚) |