| STO | Stomach | 胃 |
| STO | Self-Test Output | 自检输出 |
| STO | store | 存储 |
| STO | Standard Transfer Order | 标准传输顺序 |
| STO | Store (calculator function) | 存储（计算器功能） |
| STO | Security Through Obscurity | 通过模糊实现安全 |
| STO | Strategic Technology Office (DARPA) | 战略技术办公室（DARPA） |
| STO | Service to Others | 对他人的服务 |
| STO | Stating the Obvious | 说明明显的 |
| STO | Sub Task Order | 子任务顺序 |
| STO | Slater Type Orbital | 斯莱特型轨道 |
| STO | Solar Terrestrial Observatory | 日地天文台 |
| STO | Sales to Order | 销售到订单 |
| STO | Scheduled Time Off | 计划休息时间 |
| STO | Saint Olaf College (Northfield, MN) | 圣奥拉夫学院（明尼苏达州北菲尔德） |
| STO | Substitute Teachers Online | 在线替代教师 |
| STO | Science & Technology Objective | 科技的目的 |
| STO | Sensor Technology Office (DARPA) | 传感器技术办公室（DARPA） |
| STO | Short-Term Observers | 短期观察员 |
| STO | Surface-to-air-missile Tactical Order | 地空导弹战术命令 |
| STO | Standard Training Operation | 标准培训操作 |
| STO | Sports Therapy Organisation | 运动治疗组织 |
| STO | Pascal stub Object file | Pascal存根对象文件 |
| STO | Split Training Option | 分割训练选项 |
| STO | Stockholm, Sweden | 瑞典斯德哥尔摩 |
| STO | Standing Take Over | 常备接管 |
| STO | Special Touring Option | 特殊旅游选项 |
| STO | Special Team Operations | 特殊团队运营 |
| STO | Space Tornado Ogawa | 太空龙卷风小川 |
| STO | Science and Technology Objective | 科学技术目标 |
| STO | Stage To Orbit | 阶段到动态观察 |
| STO | Spontaneous Time Off | 自发关闭时间 |
| STO | Special Tournament Options | 特殊锦标赛选项 |
| STO | Still The One | 仍然是唯一的 |
| STO | Statutory Tour Officer | 法定旅游官员 |
| STO | System Test Operations | 系统测试操作 |
| STO | Strontium Titanate Oxide | 钛酸锶氧化物 |
| STO | Space Tasking Order | 空间任务分配顺序 |
| STO | Standard Training Order (military) | 标准训练令（军事） |
| STO | Stock Transport Order | 库存运输订单 |
| STO | Short Takeoff | 短起飞时间 |
| STO | Survive to Operate (US air defense; force protection) | 生存以行动（美国防空；部队保护） |
| STO | SociÉtÉ de Transport de l'Outaouais (French) | SociÉtÉ de Transport de l'Outaouais (French) |
| STO | Space Tornado Ogawa (wrestling move) | 太空龙卷风小川（摔跤动作） |
| STO | Stock Transfer Order (inter-company movement of stock) | 股票转移订单（公司间股票流动） |
| STO | Sell to Open (investing; trading) | 公开发售（投资；交易） |
| STO | Space Today Online (website) | 今日空间在线（网站） |
| STO | Shutdown Turnaround Outages (Best Management Practices) | 停机检修停机（最佳管理实践） |
| STO | Systems Test Officer (US Navy) | 系统测试官（美国海军） |
| STO | Submarine Task Order | 潜艇任务命令 |
| STO | School Tuition Organization | 学校学费组织 |
| STO | Special Technical Operations | 特殊技术操作 |
| STO | Student Training Officer | 学生培训官 |
| STO | State Traffic Officer | 州交通官员 |