| DO | Diesel Oil | 柴油 |
| DO | Drawing Office | 设计室, 制图室 |
| DO | Drop Out | 脱落, 退出 |
| DO | Dominica Rep. | 多米尼加共和国 |
| DO | Dissolved oxygen | 溶氧 |
| DO | Data Out (output) | 数据输出 |
| DO | Defense Order | 防御命令 |
| DO | Doctor of Otolaryngology | 耳鼻喉科医生 |
| DO | Driver Only (train operated by the driver only) | 仅驾驶员（仅由驾驶员驾驶的列车） |
| DO | Device Object | 设备对象 |
| DO | Domain Object | 域对象 |
| DO | Distributed Objects | 分布式目标 |
| DO | Dornier (German aircraft manufacturer) | Dornier（德国飞机制造商） |
| DO | DCS/Operations | DCS /操作 |
| DO | Denominacion de Origen (general identification for Spanish wines) | 原产地名称（西班牙葡萄酒的通用标识） |
| DO | Determination Order (workers compensation claims) | 裁定令（工人赔偿要求） |
| DO | Director of Operations | 运营总监 |
| DO | Data Out | 数据输出 |
| DO | Development Officer | 发展干事 |
| DO | Director of Ops (USAF) | 作战总监（美国空军） |
| DO | Direct Object | 直接对象 |
| DO | Diatomic Orbital | 双原子轨道 |
| DO | Disto-Occlusal (dentistry) | 远端咬合（牙科） |
| DO | Due Out | 到期 |
| DO | Division Operator | 分部操作员 |
| DO | Duty Officer | 值班员 |
| DO | Deportation Order | 驱逐令 |
| DO | Design Objective | 设计目标 |
| DO | Disorder | 混乱 |
| DO | Distributed Object | 分布式对象 |
| DO | Disbursing Officer | 付款官员 |
| DO | Dispensing Optician | 配药光学师 |
| DO | Divisional Officer | 部门官员 |
| DO | Drift Orbit | 漂移轨道 |
| DO | District Officer | 民政事务专员 |
| DO | drugs only | 仅限药物 |
| DO | diamine oxidase | 二胺氧化酶 |
| DO | Dynamic Object | 动态对象 |
| DO | disto-occlusal | 远端咬合 |
| DO | Data Operation | 数据操作 |
| DO | damped oscillation | 阻尼振荡 |
| DO | Dynamic Optimization | 动态优化 |
| DO | Desk Officer (NYPD) | 主管官员（纽约警察局） |
| DO | donor's plasma | 供者血浆 |
| DO | Diamond Offshore Drilling, Inc. | Diamond海上钻井公司。 |
| DO | doctor's orders | 医嘱 |
| DO | Diode Outline | 二极管外形 |
| DO | diffusing capacity of oxygen | 氧气扩散能力 |
| DO | Distributed Operations | 分布式操作 |
| DO | dombrock blood group | 多姆布鲁克血型 |
| DO | Division Officer | 部门官员 |
| DO | dewaxed oil | 脱蜡油 |
| DO | Operations Directorate (NIMA) | 运营局（NIMA） |
| DO | diploma in ophthalmology | 眼科文凭 |
| DO | Designated Official | 指定官员 |
| DO | Digital Output | 数字输出 |
| DO | District Office | 地区办事处 |
| DO | Deep Operations | 深度运营 |
| DO | Data Object | 数据对象 |
| DO | Digital Orthophoto (FEMA) | 数字正射影像（FEMA） |
| DO | Data Only | 仅限数据 |
| DO | Diffractive Optics (camera lenses technology) | 衍射光学（照相机镜头技术） |
| DO | Dark One (Wheel of Time series) | 黑暗一号（时间序列之轮） |
| DO | Disbursement Order | 支付订单 |
| DO | doctor of optometry | 验光医生 |
| DO | Director Officer | 董事会官员 |
| DO | Donk Out (poker) | Donk Out（扑克） |
| DO | Path or way (as in karate-do or taekwon-do) | 路径或方式（如空手道或跆拳道） |
| DO | Detention Officer | 拘留官 |
| DO | DiÁrio Oficial (Official Gazette; Brazil) | DiÁrio Oficial (Official Gazette; Brazil) |
| DO | District Overseer (Jehovah's Witnesses) | 地区长官(耶和华见证人) |
| DO | Ombudsmannen mot Etnisk Diskriminering (the Swedish national ombudsman for issues on ethnic discrimination) | 瑞典民族歧视问题国家监察员 |
| DO | Desktop Originator | 桌面发起人 |
| DO | Design Overview | 设计概述 |
| DO | Defined Order | 规定命令 |
| DO | Disciplined Oscillator | 纪律振荡器 |
| DO | Donnerstag | 星期四 |
| DO | US Duty Officer | 美国值班员 |
| DO | Dawson and Oberman (plasmas) | 道森和奥伯曼（等离子） |
| DO | Disbursing Order | 付款单 |
| DO | Directorate of Operations (US CIA) | 美国中央情报局 |
| DO | Operational Dependability | 操作可靠性 |
| DO | Doctor of Osteopathic Medicine | 骨病医学博士 |
| DO | Diario Oficial | 官方日记 |
| DO | Distortion Offset | 失真偏移量 |