| OWA | Oahu Wedding Association 
| Others |
| OWA | Occupational Work Adjustment
| Others |
| OWA | Office of the Worker Adviser
| Others |
| OWA | Offshore Wind Accelerator
| Others |
| OWA | Old Whitgiftian Association
| Others |
| OWA | Old Wrekinian Association
| Others |
| OWA | One Winged Angel
| Others |
| OWA | One Word Answer
| Others |
| OWA | One World Academy
| Others |
| OWA | Online Wrestling Alliance
| Others |
| OWA | Open Web Analytics
| Others |
| OWA | Open Web Apps
| Others |
| OWA | Open Wheel America
| Others |
| OWA | Open Wireless Architecture
| Others |
| OWA | Open Writing Assignment
| Others |
| OWA | Optimized Wideband Antenna
| Others |
| OWA | Oracle Web Agent
| Others |
| OWA | Oracle Web Application
| Others |
| OWA | Oracle Web Applications
| Others |
| OWA | Oratory Wrestling Alliance
| Others |
| OWA | Ordered Weighted Averaging
| Others |
| OWA | Organization of Women Architects
| Others |
| OWA | Other Way Around
| Others |
| OWA | Out Walking Around
| Others |
| OWA | Outlook Web Access
| Others |
| OWA | Outlook Web App
| Others |
| OWA | Outlook Web Application
| Others |
| OWA | Outpost Wilderness Adventure
| Others |
| OWA | Owatonna, Minnesota USA
| Others |
| OWA | Owners With Aim
| Others |