| WTL | Tuntutuliak, Alaska USA 
| Others |
| WTL | W Thomas Leroux
| Others |
| WTL | Wasai Lodge Tambopata, Peru
| Others |
| WTL | Waste of Time League
| Others |
| WTL | Water Technology List
| Others |
| WTL | Way Truth Life
| Others |
| WTL | Wearable Technology Lab
| Others |
| WTL | Webel Technology Limited
| Others |
| WTL | Webel Technology Ltd
| Others |
| WTL | Weeks To Launch
| Others |
| WTL | Werks Turbo Look
| Others |
| WTL | West Texas and Lubbock Railroad
| Others |
| WTL | West Texas Light
| Others |
| WTL | Western Tank and Lining
| Others |
| WTL | Wet Tegemoetkomingen Loondomein
| Others |
| WTL | What The Leaf
| Others |
| WTL | Where's The Lie?
| Others |
| WTL | White Thorn Lodge
| Others |
| WTL | Widebody Turbo Look
| Others |
| WTL | Will Talk Later
| Others |
| WTL | Will To Live
| Others |
| WTL | Windowing Template Library
| Others |
| WTL | Windows Template Library
| Others |
| WTL | Wireless Transport Layer
| Others |
| WTL | Woodbridge Town Library
| Others |
| WTL | Woodsball Tournament League
| Others |
| WTL | World Taekwondo League
| Others |
| WTL | World Tecmo League
| Others |
| WTL | World Telecom Labs
| Others |
| WTL | World Trade Law
| Others |
| WTL | Worldcall Telecom Limited
| Others |
| WTL | Worn to (the) Limit
| Others |
| WTL | Wotton Travel limited
| Others |
| WTL | Wotton Travel Ltd
| Others |
| WTL | Writing to Learn
| Others |