| Acronym | Definition |
|---|
| WTR | Water |
| WTR | Writer |
| WTR | War Tax Resistance |
| WTR | Work the Room (software) |
| WTR | Write Recovery Time |
| WTR | Write to Read |
| WTR | Wireless Technology Research |
| WTR | Walker, Texas Ranger (TV show) |
| WTR | Withholding Tax Ruling (Arizona) |
| WTR | World Trade Review (World Trade Organization) |
| WTR | Western Test Range |
| WTR | Work to Residence (visa; New Zealand) |
| WTR | Wait To Restore |
| WTR | Women That Rock |
| WTR | Working Time Regulation (UK) |
| WTR | Werkgroep Traumarevalidatie (Dutch) |
| WTR | With-The-Rule Astigmatism |
| WTR | Waist-to-Tallness Ratio (cardiovascular risk assessment) |
| WTR | Westinghouse Test Reactor |
| WTR | Work Time Registration |
| WTR | Woody, Tony, & Ravey (radio morning show) |
| WTR | Walk to Read (reading intervention program) |
| WTR | White Tail Resort (Ivor, VA) |
| WTR | Want to Race |
| WTR | Wind Tunnel Road |
| WTR | Weekly Time Reporting |
| WTR | Weapons Test Range |
| WTR | William T Riker (Star Trek character) |
| WTR | Wartime Training Requirement |
| WTR | Well to Right (of course) |
| WTR | Welterusten (Dutch: sleep well) |
| WTR | Willingness to Return (consumer satisfaction rating) |
| WTR | Wrightsville and Tennville Railroad |
| WTR | Wireless Telegraphy Register (UK) |