| Acronym | Definition |
|---|
| OOW | Oracle Open World |
| OOW | Order of Whispers (gaming clan) |
| OOW | Ohio Ordnance Works (firearms manufacturer) |
| OOW | Out of Warranty |
| OOW | Oracle Optimized Warehouse |
| OOW | Opleidings- en Onderwijswetenschappen (Dutch: Training and Education Sciences; University of Antwerp; Belgium) |
| OOW | Officer Of the Watch |
| OOW | Order of War (video game) |
| OOW | Out Of Wedlock |
| OOW | Out Of Work (disability management) |
| OOW | On Our Way |
| OOW | Omens of War (gaming) |
| OOW | Out-Of-Warranty |
| OOW | Out Of Whack |
| OOW | Out of War (Utopia game) |
| OOW | Office of Operations and Weapons |