| SDO | Aerolineas Santo Domingo, Dominican Republic (ICAO code) | 多米尼加共和国圣多明各航空公司（ICAO代码） |
| SDO | Standards Developing/Development Organization | 标准的发展和发展机构 |
| SDO | Stamp Distribution Office (US Postal Service) | 邮票发行局（美国邮政局） |
| SDO | System Development Operations | 系统开发操作 |
| SDO | Solar Dynamics Observatory (satellite) | 太阳动力学观测站（卫星） |
| SDO | Software Delivery Optimization (Borland) | 软件交付优化（Borland） |
| SDO | Scheduled Day Off | 计划休息日 |
| SDO | Sudden Death Overtime | 猝死加班 |
| SDO | Service Data Object | 服务数据对象 |
| SDO | Staff Development Officer | 工作人员发展干事 |
| SDO | Supply Depot Operations | 补给站运营 |
| SDO | Serial Data Output | 串行数据输出 |
| SDO | Social Dominance Orientation (psychology) | 社会支配取向（心理学） |
| SDO | Support for Diplomatic Operations (Intelligence) | 外交行动支持（情报） |
| SDO | Saldo | 萨尔多 |
| SDO | Silent Death Online | 无声死亡在线 |
| SDO | Super Distributed Object | 超级分布式对象 |
| SDO | Signed Data Object | 签名数据对象 |
| SDO | Speedometer Drive Output | 车速表驱动输出 |
| SDO | Scheda Dimissione Ospedaliera (Italian) | Scheda Dimissione Ospedaliera（意大利语） |
| SDO | Staff Duty Officer | 参谋值班员 |
| SDO | Securities Division order | 证券部命令 |
| SDO | Sub Divisional Officer (india) | 分区干事（印度） |
| SDO | Special Duty Only | 仅限特殊用途 |
| SDO | Shilo Danieltown And Oakland | Shilo Danieltown和奥克兰 |
| SDO | Squadron Duty Officer | 中队值班员 |
| SDO | Scattered Disk Object | 分散的磁盘对象 |
| SDO | Solution Delivery Officer (supply chain management) | 解决方案交付官（供应链管理） |
| SDO | Spatial Data Object | 空间数据对象 |
| SDO | Shared Data Object | 共享数据对象 |
| SDO | Solar Dynamics Observatory | 太阳动力学观测卫星 |
| SDO | Ship Development Objective | 船舶开发目标 |
| SDO | Serra Dos Orgaos | Serra Dos Orgaos公司 |
| SDO | sudden-dosage onset | 突然剂量发作 |
| SDO | Service Delivery Organization | 服务交付组织 |
| SDO | SHILO, DANIELTOWN, and OAKLAND | 希洛、丹尼尔敦和奥克兰 |
| SDO | Serial Data Out | 串行数据输出 |
| SDO | Solenoid Driver Output | 电磁阀驱动器输出 |
| SDO | Self Describing Object | 自我描述对象 |
| SDO | stamp distribution office | 邮票发行处 |
| SDO | Sustainable Development Online | 在线可持续发展 |