| PTL | private tieline service | 电报专线业务 |
| PTL | Pay the Lady (National Thoroughbred Racing Association) | 支付女士（全国纯种赛马协会） |
| PTL | Portable Traffic Light | 便携式交通灯 |
| PTL | Prime Transport Limited | Prime运输有限公司 |
| PTL | Planar Transmission Line | 平面传输线 |
| PTL | Primary Target Line | 主要目标行 |
| PTL | Prise de Terrain en L (aeronautics) | Prise de Terrain en L（航空） |
| PTL | Parent Teacher League | 家长教师联盟 |
| PTL | Pass The Loot | 通过抢劫 |
| PTL | Pressure Treated Lumber | 压力处理木材 |
| PTL | Praise The Lord | 赞美上帝 |
| PTL | Preterm Labor | 早产劳动力 |
| PTL | Petroleum Testing Laboratory | 石油测试实验室 |
| PTL | Peak Traffic Load | 高峰交通负荷 |
| PTL | Pick-To-Light (automation technology) | 轻拾（自动化技术） |
| PTL | Photovoltaic Testing Laboratory (Arizona State University) | 光伏测试实验室（亚利桑那州立大学） |
| PTL | Party To Loss (insurance) | 损失方（保险） |
| PTL | Paschell Truck Lines | 帕斯卡尔卡车生产线 |
| PTL | Push-The-Limit | 突破极限 |
| PTL | Program/Project Team Leader | 计划/项目团队领袖 |
| PTL | Potential To Learn | 学习潜力 |
| PTL | Past Temporal Logic | 过去的时间逻辑 |
| PTL | Practicing The Language | 练习语言 |
| PTL | Pass The Lettuce | 传递生菜 |
| PTL | Pittsburgh Testing Laboratory | 匹兹堡测试实验室 |
| PTL | Purple Tailed Lizard | 紫尾蜥蜴 |
| PTL | IEEE Photonics Technology Letters | 技术快报 |
| PTL | Pre Term Labor | 前期劳动力 |
| PTL | Pay The Lady | 付钱给女士 |
| PTL | People That Love | 爱的人 |
| PTL | Rational Rose 98 Petal file | Rational Rose 98 Petal文件 |
| PTL | Program Team Leader | 项目团队负责人 |
| PTL | Pedro the Lion (band) | 狮子佩德罗（乐队） |
| PTL | Pass-Transistor Logic (lowering power consumption in digital circuits) | 通过晶体管逻辑（降低数字电路中的功耗） |
| PTL | Protecting the US Technical Lead | 保护美国技术领先者 |
| PTL | Partner Technical Lead | 合作伙伴技术负责人 |
| PTL | ProTrader Language | ProTrader语言 |
| PTL | Pharnygotracheal Lumen (airway device) | 咽气管管腔（气道装置） |
| PTL | Platform Team Leader | 平台团队负责人 |
| PTL | Post Tenebras Lux (Latin: Light After Darkness) | Post-Tenebras Lux（拉丁语：黑暗之后的光明） |
| PTL | Pushing the Limits (gaming team) | 突破极限（游戏团队） |
| PTL | Patrol Officer (law enforcement) | 巡警（执法） |
| PTL | Physical Training Leader | 体能训练负责人 |
| PTL | Physikalisch Technische Lehranstalt (Wedel, Germany) | Physikalisch Technische Lehnanstalt（德国韦德尔） |
| PTL | Polskie Towarzystwo Lekarskie | Polskie Towarzystwo Lekarskie公司 |
| PTL | prolapse of tricuspid leaflets | 三尖瓣脱垂 |
| PTL | Part-Time Lecturers | 兼职讲师 |
| PTL | pharyngotracheal lumen | 咽气管腔 |
| PTL | plasma thyroxin(e)level | 血浆甲状腺素（e）水平 |
| PTL | posterior tricuspid leaflet | 三尖瓣后叶 |
| PTL | perinatal telencephalic leucoencephalopathy | 围产期端脑白质脑病 |
| PTL | proliferative t lymphocyte | 增殖性t淋巴细胞 |