| ECTL | Education Coaching Team Leader | 教育辅导组长 |
| ECTL | Emitter Coupled Transistor Logic | 发射极耦合晶体管逻辑 |
| ECTL | External Cavity Tunable Laser | 外腔可调谐激光器 |
| ECTL | Elcotel, Inc. | Elcotel公司。 |
| ECTL | European Centre for Transportation and Logistics | 欧洲运输和物流中心 |
| ECTL | Electronic Communal Temporal Lobe | 电子共时叶 |
| ECTL | Existential Computational Tree Logic | 存在计算树逻辑 |