| TAT | tyrosin aminotransferase | 酪氨酸氨基转移酶 |
| TAT | truck-air-truck | 陆空联运 |
| TAT | toxin-antitoxin | 毒素抗毒素 |
| TAT | Purified Tetanus Antitoxin | 精制破伤风抗毒素 |
| TAT | Thematic Apperception Test | 主题统觉测验 |
| TAT | Tatry/Poprad, Slovakia - Tatry/Poprad (Airport Code) | Tatry / Poprad、斯洛伐克- Tatry / Poprad(机场代码) |
| TAT | Teenage Travelers (Family Motor Coach Association) | 青少年旅行者（家庭汽车教练协会） |
| TAT | Technical Assistance in Telecom Sector (India) | 电信部门的技术援助（印度） |
| TAT | Tourism Authority of Thailand | 泰国旅游局 |
| TAT | Tired All the Time (medical shorthand) | 一直疲劳（医学速记） |
| TAT | tyrosine aminotransferase | 酪氨酸氨基转移酶 |
| TAT | Turn Around Time | 周转时间 |
| TAT | Total Air Temperature | 总空气温度 |
| TAT | Time for Average Turnaround | 平均周转时间 |
| TAT | Theoretical Arrival Time | 理论到达时间 |
| TAT | To Accompany Troops | 随军 |
| TAT | Technical Assistance Team | 技术援助团队 |
| TAT | Thrombin-Antithrombin Complex | 凝血酶抗凝血酶复合物 |
| TAT | Two-Axis Tracking | 双轴跟踪 |
| TAT | Transitional Automated Ticket (airlines) | 过渡自动售票（航空公司） |
| TAT | The Astonishing Tribe (Sweden) | 惊人部落（瑞典） |
| TAT | Three Affiliated Tribes | 三个附属部落 |
| TAT | Talking About Tourism | 谈旅游业 |
| TAT | Tyrosinal Adrenal Thyroid | 酪氨酸肾上腺甲状腺 |
| TAT | Truth About Tver | Tver的真相 |
| TAT | Tatry/ Poprad, Slovakia | Tatry / Poprad、斯洛伐克 |
| TAT | The Almighty Teen | 全能的青少年 |
| TAT | Tapas Accupressure Technique | Tapas Accupressure技术 |
| TAT | Technologies And Tactics | 技术和战术 |
| TAT | Tatar | 鞑靼语 |
| TAT | Turn-Around Time | 周转时间 |
| TAT | Thematic Appreciation Test | 主题欣赏测试 |
| TAT | Therapeutic Area Team | 治疗区域团队 |
| TAT | Tetanus Anti-Toxin | 破伤风毒素 |
| TAT | Trans-Activation of Transcription | 转录的反式激活 |
| TAT | Transgenic Arthropod Team | 转基因节肢动物团队 |
| TAT | thromboplastin activation test | 凝血活酶活化试验 |
| TAT | Transport AÉrien TransrÉgional (French: Regional Air Transport) | Transport AÉrien TransrÉgional (French: Regional Air Transport) |
| TAT | Technology Applications Team | 技术应用团队 |
| TAT | tumor activity test | 肿瘤活性试验 |
| TAT | Testing and Training (SW Development and QA Testing) | 测试和培训（软件开发和QA测试） |
| TAT | toxin-antitoxin test | 毒素抗毒素试验 |
| TAT | tray agglutination test | 托盘凝集试验 |
| TAT | Test Auto Test | 测试自动测试 |
| TAT | terminal deoxyribonucleic acid transferase | 末端脱氧核糖核酸转移酶 |
| TAT | Timed Automata with Tasks | 带任务的定时自动机 |
| TAT | takata-ara test | 高田原试验 |
| TAT | Trans-Atlantic Telephone cable | 跨大西洋电话线 |
| TAT | Turbine Air Temperature | 涡轮空气温度 |
| TAT | Test Analysis Table | 测试分析表 |
| TAT | Transient Accommodations Tax | 临时住宿税 |
| TAT | Totally Awesome Trip (slang) | 非常棒的旅行（俚语） |
| TAT | Transportation and Ammunition Tracking | 运输和弹药追踪 |
| TAT | Termination Attempt Trigger | 终止尝试触发器 |
| TAT | Truth and Transmission (Foundation) | 真相与传播（基础） |
| TAT | Teens Against Television | 青少年反对电视 |
| TAT | Thermally-Activated Time-Dependent (reliability model) | 热激活时间相关（可靠性模型） |
| TAT | Touraine Air Transport (airline) | Touraine航空运输（航空公司） |
| TAT | Trans-America Trail (off-road jeep/motorcyce trail) | Trans-America小道越野吉普车/ motorcyce(跟踪) |
| TAT | Technical Assessment Team | 技术评估小组 |
| TAT | Tattoo | 纹身 |
| TAT | Tiffani-Amber Thiessen | 蒂法尼琥珀蒂森 |
| TAT | Tetanus Antitoxin | 破伤风抗毒素 |
| TAT | Transactivator of Transcription (HIV protein) | 转录反激活物（HIV蛋白） |
| TAT | Tactical Airsoft Team | 战术空军团队 |
| TAT | Tyumen Avia Trans | 秋明阿维亚运输公司 |
| TAT | Time After Time (song) | 一次又一次（歌曲） |
| TAT | Tapas Acupressure Technique | Tapas穴位按压技术 |
| TAT | Terrorist Action Team | 恐怖行动小组 |
| TAT | Totally Antisymmetric Tensor | 完全反对称张量 |
| TAT | Tactical Airlift Technology | 战术空运技术 |
| TAT | Tactical Analysis Team | 战术分析小组 |
| TAT | Ti Amo Tanto (Italian: I love you a lot) | 提·阿莫·坦托（意大利语：我非常爱你） |