WDO
| Acronym | Definition |
|---|---|
| WDO | Watch Dog Organization (various locations) |
| WDO | Window |
| WDO | Waldo (Amtrak station code; Waldo, FL) |
| WDO | Wood Destroying Organism (insects) |
| WDO | Waste Diversion Ontario (Canada) |
| WDO | Wisconsin Desmo Owners |
| WDO | Women Defending Ourselves (Stanford, CA) |
| WDO | Well Done Opponents (Yahoo! Bridge) |
| WDO | Workforce Development Office |
| WDO | WebSphere Data Object (IBM) |
| WDO | War Dog Outfitters (est. 2008; Michigan) |
| WDO | Warhammer Dark Omen (video game) |