| LETS | Large, External, Transformation-Sensitive Protein | 大型外部转化敏感蛋白 |
| LETS | Local Economic Trading Scheme | 地方经济贸易计划 |
| LETS | Local Exchange Trading System | 本地外汇交易系统 |
| LETS | Line Efficiency Tracking System | 线路效率跟踪系统 |
| LETS | Local Exchange Trading Scheme | 本地外汇交易计划 |
| LETS | Local Employment Trading System | 当地就业交易系统 |
| LETS | Local Economic Trading System | 地方经济交易系统 |
| LETS | Local Exchange Trade System | 本地外汇交易系统 |
| LETS | Livingston Essential Transportation Services (Howell, MI) | 利文斯顿基本交通服务（密歇根州豪威尔） |
| LETS | Local Exchange And Trading Scheme | 本地交易所和交易计划 |
| LETS | Law Enforcement Tactical System (Alabama) | 执法战术系统（阿拉巴马州） |
| LETS | Law Enforcement Teaching Students (Texas) | 执法教学学生（德克萨斯州） |
| LETS | Local Employment and Trade System | 当地就业和贸易系统 |
| LETS | Live Environment Training Systems | 现场环境培训系统 |
| LETS | Lord of E-Town Streets | E镇街道领主 |
| LETS | Learning Exchange for Teachers and Students | 师生学习交流 |