| TLI | Transport Layer Interface | 运输层接口 |
| TLI | Transport Level Interface | 传输级接口 |
| TLI | Technology Leadership Innovation (TLI Software Pvt Ltd) | 技术领先创新（TLI Software Pvt Ltd） |
| TLI | Tertiary Level Institution | 高等教育机构 |
| TLI | Traffic Load Index (Air Traffic Control) | 交通负荷指数（空中交通管制） |
| TLI | total lymphoid irradiation | 总淋巴照射 |
| TLI | Technology Leadership Institute | 技术领导力研究所 |
| TLI | Tank Level Indicator | 油箱液位指示器 |
| TLI | Trans-Lunar Injection | 跨月球注射 |
| TLI | Toastmaster's Leadership Institute | 国际学院的领导 |
| TLI | TCT Logistics Inc | TCT物流公司 |
| TLI | Time-Life International | 时代人寿国际 |
| TLI | Tucker-Lewis Index | 塔克-刘易斯指数 |
| TLI | The Logistics Institute | 物流学院 |
| TLI | Texas Learning Index (student assessment) | 德克萨斯州学习指数（学生评估） |
| TLI | Too Little Information | 信息太少 |
| TLI | Trypsinogen Like Immunoreactivity (veterinary diagnostics for canines/felines with pancreatic disorders) | Trypsinogen像Immunoreactivity(兽医诊断为多犬/猫与胰脏疾病) |
| TLI | Thermic Laboratory Inc (Claremont, NH) | Thermic Laboratory Inc（新罕布什尔州克莱蒙特） |
| TLI | Taipei Language Institute | 台北语文学院 |
| TLI | The Laurasian Institution | 劳拉西亚学会 |
| TLI | Trans Lunar Injection | 跨月球注射 |
| TLI | Travelers Corporate Loan Fund, Inc. | 旅行者公司贷款基金公司。 |
| TLI | Trypsin Like Immunoreactivity | 胰蛋白酶样免疫反应性 |
| TLI | Tlingit | 特林吉特 |
| TLI | Texas Learning Index | 德克萨斯州学习指数 |
| TLI | tonic labyrinthine inverted | 强直性迷路倒转 |
| TLI | Tread Lightly!, Inc. | 轻踩！，股份有限公司 |
| TLI | thymidine labeling index | 胸苷标记指数 |
| TLI | Teoria Logica Implicita | 逻辑隐含性 |
| TLI | trypsin-like immunoreactivity | 胰蛋白酶样免疫反应性 |
| TLI | TOUGH LOVE International | TOUGH LOVE国际 |
| TLI | The Lost Island (gaming) | 失落的岛屿（游戏） |
| TLI | Toastmasters Leadership Institute | 演讲会领导学会 |
| TLI | Tread Lightly | 轻踩踏板 |
| TLI | Telephone-Line Interface | 电话线接口 |
| TLI | Tolitoli, Indonesia | 印度尼西亚托利托利 |
| TLI | The Laborer's Institute (Aurora, Colorado) | 劳动者的研究所(极光,科罗拉多州) |
| TLI | Top Level Item | 顶级项目 |
| TLI | Thought and Language Index | 思想和语言索引 |
| TLI | The Lonely Island (comedy team) | 《孤岛》（喜剧团队） |
| TLI | Training Learning Institute | 培训学习机构 |
| TLI | Tilted Laser Image | 倾斜激光图像 |
| TLI | Treaty Limited Item(s) | 条约限制项目 |