| TDD | Time Division Dual | 时分双工 |
| TDD | Trinidad, Bolivia (Airport Code) | 特立尼达，玻利维亚（机场代码） |
| TDD | Telecommunication Device for the Deaf | 聋人电信设备 |
| TDD | Total Demand Distortion | 总需求失真 |
| TDD | Test Driven Development (programming methodology) | 测试驱动开发（编程方法） |
| TDD | Technical Due Diligence | 技术尽职调查 |
| TDD | Timing-Driven Design | 定时驱动设计 |
| TDD | Task Data Description | 任务数据描述 |
| TDD | Technical Direction Document | 技术指导文件 |
| TDD | Three Doors Down (band) | 三门向下（乐队） |
| TDD | Telecom Depressive Disorder (phone, fax, pager, email, no messages) | 电信抑郁症（电话、传真、寻呼机、电子邮件、无信息） |
| TDD | Time Division Duplex (Wireless) | 时分双工（无线） |
| TDD | Test Design Description | 测试设计说明 |
| TDD | Tax Development District | 税务开发区 |
| TDD | total daily dose | 每日总剂量 |
| TDD | Time Definite Delivery | 限时交货 |
| TDD | Tactical Display Device | 战术显示设备 |
| TDD | thoracic duct drainage | 胸导管引流 |
| TDD | Technical Design Document | 技术设计文件 |
| TDD | Terminal Station | 终点站 |
| TDD | Truncated De-Correlating Detector | 截断去相关检测器 |
| TDD | Test Driven Design | 测试驱动设计 |
| TDD | Team Draft Dog | 团队牵引犬 |
| TDD | Telecommunications Device for the Deaf | 聋人电信设备 |
| TDD | Trinidad, Bolivia | 特立尼达，玻利维亚 |
| TDD | Trick Daddy Dollars | 欺骗爸爸美元 |
| TDD | Teacher Development Day | 教师发展日 |
| TDD | Time Division Duplex | 时分双工 |
| TDD | Tight Dangerous Debaters | 激烈的危险辩论 |
| TDD | The Digimon Digivolution | 数字进化论 |
| TDD | Transportation Development District | 交通发展区 |
| TDD | Truck Driver Department | 卡车司机部 |
| TDD | Time Division Duplexing | 时分双工 |
| TDD | Ternary Decision Diagram | 三元决策图 |
| TDD | Test Development Director | 测试开发总监 |
| TDD | Technical Description Document | 技术说明文件 |
| TDD | Temporary Design Departure | 临时设计偏离 |
| TDD | Territory Development Department (Hong Kong) | 国土开发部（中国香港） |
| TDD | Temporal Dependency Distance | 时间依赖距离 |
| TDD | Target Detection/Detecting Device | 目标探测/检测设备 |
| TDD | The December Drive (band) | 十二月大道（乐队） |
| TDD | Top-Down Decomposition | 自上而下分解 |
| TDD | Test Driven Development | 测试驱动开发 |
| TDD | Threat Definition Document | 威胁定义文件 |
| TDD | tuberculous diseases diploma | 结核性疾病文凭 |
| TDD | Technical Documents Department | 技术文件部 |
| TDD | Test Documentation Drawing | 测试文件图纸 |
| TDD | ter de die | 模具，模具 |
| TDD | Terrorist Device Defeat (US Defense Threat Reduction Agency) | 恐怖装置失败（美国国防威胁降低局） |
| TDD | Trick Daddy Dollar (rapper) | Trick Daddy Dollar（说唱歌手） |
| TDD | Technical Discussion Document | 技术讨论文件 |
| TDD | Target DGZ Designator | 目标DGZ指示符 |