WIO
| Acronym | Definition |
|---|---|
| WIO | World-Information.Org |
| WIO | Western Indian Ocean |
| WIO | Who Is Online |
| WIO | Workforce Investment Office (various locations) |
| WIO | Walk It Out |
| WIO | Whip It Out |
| WIO | Wärtsilä Industrial Operations (Helsinki, Finland) |
| WIO | World Interact Organization |
| WIO | Wireless Intranet Office (network technology) |