| Acronym | Definition |
|---|
| OWG | Olympic Winter Games |
| OWG | One World Government |
| OWG | Overtaking Working Group |
| OWG | One World Group |
| OWG | Operations Working Group |
| OWG | Old White Guy |
| OWG | Optical Waveguide |
| OWG | Outdoor Writers' Guild (UK) |
| OWG | Other Will Grayson (character in Will Grayson, Will Grayson by John Green and David Levithan) |
| OWG | Operational Working Group |
| OWG | Oil, Water, Gas (valve pressure) |
| OWG | Orlando Wyndham Group (now Pernod Ricard Pacific) |
| OWG | On Weight of Goods (textiles) |
| OWG | One Way Glass |
| OWG | OPSEC Working Group |
| OWG | Osho World Galleria (India) |
| OWG | Outwit Gear (file extension) |
| OWG | Oil Well Gas |