| OATS | open area test site | 开阔试验场 |
| OATS | Offering Alternative Therapy with Smiles | 用微笑提供替代疗法 |
| OATS | Oxford Air Training School | 牛津飞行训练学校 |
| OATS | Osteochondral Autograft Transfer System | 骨软骨自体移植系统 |
| OATS | Optical Alignment Transfer System | 光学对准传输系统 |
| OATS | Orthogonal Array Testing (test technique to provide maximum coverage from a test procedure with a minimum number of test | 正交阵列测试（以最少的测试次数提供测试程序的最大覆盖范围的测试技术 |
| OATS | Optimized Adaptive Trading System (stock market trading) | 优化的自适应交易系统（股票市场交易） |
| OATS | Older Adult Transportation System | 老年人交通系统 |
| OATS | Open Architecture Test System | 开放式体系结构测试系统 |
| OATS | Optical Attenuation Test Set | 光学衰减测试装置 |
| OATS | Orbit and Attitude Tracking | 轨道和姿态跟踪 |
| OATS | Over-The-Air Activation Teleservice | 空中激活远程服务 |
| OATS | Office Automation Technology and Services (FAA) | 办公自动化技术与服务（FAA） |
| OATS | Outcomes Assessments And Teaching Strategies | 成果评估和教学策略 |
| OATS | Open Application Telephony Specification | 开放应用电话规范 |
| OATS | Order Administration and Tracking System (Sprint) | 订单管理和跟踪系统（Sprint） |
| OATS | Open Air Test Site | 露天试验场地 |
| OATS | Wild Oats Markets, Inc. | 野生燕麦市场有限公司。 |
| OATS | Obligations Assimilables du TrÉsor | Obligations Assimilables du TrÉsor |
| OATS | Options Automated Trading System | 期权自动交易系统 |
| OATS | Oral Anecdotes And Testamentary Stories | 口述轶事和遗嘱故事 |
| OATS | Order Audit Trail System | 订单审核跟踪系统 |