| Acronym | Definition |
|---|
| OWS | Occupy Wall Street (protest group) |
| OWS | Operational Weather Squadron |
| OWS | Open Geospatial Consortium, Inc. |
| OWS | Office of Workforce Security |
| OWS | Otto Wagner Spital (German: Otto Wagner Hospital; Austria) |
| OWS | Online Workgroup Server |
| OWS | Object Working Set |
| OWS | Open Workgroup Suite |
| OWS | Open Web Service |
| OWS | Oracle Workgroup Server |
| OWS | Osps Workstation |
| OWS | Office Web Server |
| OWS | Ocean Weather Station |
| OWS | Operator Workstation (Ericsson) |
| OWS | Oil Water Separator |
| OWS | Oracle Web Server |
| OWS | Orbital Workshop (1960s NASA program) |
| OWS | Open Water Swim |
| OWS | Open Web Studio (software) |
| OWS | Outdoor Wireless System |
| OWS | Online Work Study (various locations) |
| OWS | Owner Will Ship |
| OWS | occupant weight sensor (automotive) |
| OWS | Operation Warrior Support (Daytona Beach, FL) |
| OWS | Oilfield Warehouse & Services |
| OWS | Online Web Solutions |
| OWS | Ontario Weather Service |
| OWS | Order of World Scouts (est. 1911) |
| OWS | Optimal Wire Sizing |
| OWS | Operating While Suspended (law enforcement) |
| OWS | Obsessive Website Statistics |
| OWS | Obstacle Warning System |
| OWS | On Wing Support (aviation) |
| OWS | One World Syndicate (gaming community) |
| OWS | Overload Warning System |
| OWS | Oracle Workforce Scheduling (software) |
| OWS | Oily Water Sewer |
| OWS | Odfjell Well Services (Tanager, Norway oil & gas equipment & services company) |
| OWS | Open Web Steel (joists, construction) |
| OWS | Orbiting Workshop |
| OWS | Optical Witness Sample |
| OWS | Outcomes Web System |
| OWS | Operations Workstation |
| OWS | Oldbury Wells School |
| OWS | Ottawa Watercolor Society |
| OWS | Overweight Surcharge (shipping industry) |
| OWS | OPC Warm Standby (Nortel) |
| OWS | Overhead Weapons System |
| OWS | On Wing Services |
| OWS | Office of Warfighter Support |
| OWS | Online Warranty Service (ASBIS Enterprises) |
| OWS | Overall Wellness Score |
| OWS | Ocean Work Station (Canadian Naval Forces) |
| OWS | Outdoor Wood Store |
| OWS | Order Wire System |
| OWS | Operational Work Station |
| OWS | Ojibway Warrior Society (Canada) |