| OWG | Oceanic Work Group
| Others |
| OWG | Of Weight of Goods
| Others |
| OWG | Off We Go
| Others |
| OWG | Oil Water Gas
| Others |
| OWG | Oil Well Gas
| Others |
| OWG | Old White Guy
| Others |
| OWG | Old World Gourmet
| Others |
| OWG | Olympic Winter Games
| Others |
| OWG | On Weight of Goods
| Others |
| OWG | One World Government
| Others |
| OWG | One World Group
| Others |
| OWG | Online World Guide
| Others |
| OWG | Online Writers Group
| Others |
| OWG | Only World Group
| Others |
| OWG | Ontario Working Group
| Others |
| OWG | Ontology Working Group
| Others |
| OWG | Open Working Group
| Others |
| OWG | Operational Working Group
| Others |
| OWG | Operations Working Group
| Others |
| OWG | OPSEC Work Group
| Others |
| OWG | Orange White Green
| Others |
| OWG | Original Work Grant
| Others |
| OWG | Osteoporosis Working Group
| Others |
| OWG | Other Will Grayson
| Others |
| OWG | Outcomes Working Group
| Others |
| OWG | Outsourcing Working Group
| Others |
| OWG | Overtaking Working Group
| Others |