| SDT | the Society of Dairy Technology | 乳品技术学会 |
| SDT | Society of Dairy Technology (UK) | 乳制品技术协会（英国） |
| SDT | Spatial Display Tool | 空间显示工具 |
| SDT | Spare Delivery Time | 备用交付时间 |
| SDT | Subpoena Duces Tecum | 技术部副部长 |
| SDT | Self Development Test | 自我发展测试 |
| SDT | Software Development Tool | 软件开发工具 |
| SDT | Silver Diffusion Transfer (film processing) | 银扩散转移（膜处理） |
| SDT | Systems Development Team | 系统开发团队 |
| SDT | Standard Diagnostic Test | 标准诊断测试 |
| SDT | System Diagnostic Test | 系统诊断测试 |
| SDT | Science Definition Team (NASA) | 科学定义团队（NASA） |
| SDT | Synchronization, Data and Timing (composite data signal) | 同步、数据和定时（复合数据信号） |
| SDT | Space & Defence Technologies (Turkey) | 空间和国防科技(土耳其) |
| SDT | Self Directed Teams | 自我指导团队 |
| SDT | Specially Designated Terrorist | 特别指定恐怖分子 |
| SDT | Software Development Test | 软件开发测试 |
| SDT | San Diego Trolley | 圣地亚哥电车 |
| SDT | Step Down Transformer | 降压变压器 |
| SDT | Supply Delay Time | 供应延迟时间 |
| SDT | System Development Test | 系统开发测试 |
| SDT | SACCS Desktop Terminal | SACCS桌面终端 |
| SDT | Signal Detection Theory | 信号检测理论 |
| SDT | speech detection threshold | 语音检测阈值 |
| SDT | single donor transfusion | 单供体输血 |
| SDT | sacrodextra transversa(position of fetus) | 横骶右肌（胎儿位置） |
| SDT | sensory decision theory | 感官决策理论 |
| SDT | Stonefield Database Toolkit | Stonefield数据库工具包 |
| SDT | Sdl Design Tool | Sdl设计工具 |
| SDT | Saidu Sharif, Pakistan | 巴基斯坦赛义德·谢里夫 |
| SDT | Slow Dissolve Tablet | 缓慢溶解片剂 |
| SDT | Show Don't Tell | 显示别告诉 |
| SDT | SmartDraw template | SmartDraw模板 |
| SDT | Security Dynamics Technologies (Company) | 安全动态技术（公司） |
| SDT | San Diego Tekken | 圣地亚哥Tekken |
| SDT | Second Destination Transportation | 第二目的地运输 |
| SDT | System Design Team | 系统设计团队 |
| SDT | Sigma Delta Tau (sorority) | Sigma Delta Tau（女生联谊会） |
| SDT | Service Description Table (Digital Video Broadcast data) | 服务描述表（数字视频广播数据） |
| SDT | Senior Director Technician | 高级主管技术员 |
| SDT | Sun-Dried Tomato(es) (restaurant menus) | 晒番茄（餐厅菜单） |
| SDT | Signal Detection Theory (cognitive science) | 信号检测理论（认知科学） |
| SDT | Steered Directional Transmission | 转向定向变速器 |
| SDT | Stutter Dial Tone | 斯图加特拨号音 |
| SDT | Selection Diversity Transmission | 选择分集传输 |
| SDT | Shock-to-Detonation Transition (detonation physics) | 冲击到爆轰转变（爆轰物理学） |
| SDT | Standard Duty Title | 标准职务名称 |
| SDT | Service de Traduction (Translation Service of the Commission of the EU) | 翻译服务（欧盟委员会翻译服务） |
| SDT | Start Data Transfer | 开始数据传输 |
| SDT | Simple Data Transformer | 简单数据转换器 |
| SDT | Shippers Declaration of Transport of dangerous goods (FIATA) | 托运人危险货物运输声明（FIATA） |
| SDT | Soldat | 士兵突击 |
| SDT | Shadow Development Technologies | 影子开发技术 |
| SDT | Small Dead Time (geophysics) | 小停滞时间（地球物理学） |
| SDT | Secondary Designated Target | 次要指定目标 |