| WTI | West Texas Intermediate | 西德州轻质原油公司 |
| WTI | Walk and Talk Interface | 步话机接口 |
| WTI | Wincity Trade, Inc. | Wincity贸易公司。 |
| WTI | Weapons And Tactics Instructor | 武器和战术教官 |
| WTI | Weapons and Tactics Instruction | 武器和战术教学 |
| WTI | Wing Tip Index | 翼尖指数 |
| WTI | Wetland Training Institute, Inc. | 湿地培训研究所。 |
| WTI | Wire Thread Insert | 钢丝螺纹插入件 |
| WTI | With The Idea (used in chess to point to the idea behind a specific move) | 与想法（在国际象棋中用于指向特定动作背后的想法） |
| WTI | Weapons Training Instruction | 武器训练指令 |
| WTI | Web Telephony Integration | Web电话集成 |
| WTI | Waste Technologies Industries | 废物技术行业 |
| WTI | Weapon Train Indicator | 武器序列指示器 |
| WTI | World Trade Index | 世界贸易指数 |
| WTI | Withlacoochee Technical Institute | Withlacoochee技术研究所 |
| WTI | Weapons Tactics Instructions | 武器战术说明 |
| WTI | Weapons and Tactics Instructor (USMC) | 武器和战术教官（USMC） |
| WTI | Warehouse Technology Initiative (Oracle) | 仓库技术计划（Oracle） |
| WTI | Weapons Tactics Instructor | 武器战术教官 |
| WTI | Western Telematic, Inc. | Western Telematic公司。 |
| WTI | Web Traffic Intelligence | Web流量智能 |
| WTI | Washington Technical Institute (now the University of the District of Columbia) | 华盛顿技术学院（现哥伦比亚特区大学） |
| WTI | World Tribunal on Iraq | 伊拉克问题世界法庭 |
| WTI | Winding Temperature Indicator | 绕组温度指示器 |
| WTI | Western Transportation Institute (Montana State University) | 西部运输学院（蒙大拿州立大学） |