| Acronym | Definition |
|---|
| OWR➣Official World Record |
| OWR➣Office of Water Resources (various locations) |
| OWR➣Odenwaldwerke Rittersbach (German manufacturer) |
| OWR➣Open Wheel Racing |
| OWR➣Optical Word Recognition (iArchives) |
| OWR➣Osler-Weber-Rendu Syndrome |
| OWR➣Office of Water Regulation (Western Australia) |
| OWR➣Ontario Wrestling Recap |
| OWR➣Omega West Reactor |
| OWR➣Office of Workforce Relations (US Office of Personnel Management) |
| OWR➣Overview of World Religions (Religion and Philosophy department, university course) |
| OWR➣Out of Warranty Repair |
| OWR➣oil and water repellent (clothes, fabrics) |
| OWR➣Optical Wavelength Router (Lightchip) |
| OWR➣Operations Work Request (Sprint) |
| OWR➣Optical Warning Receiver |
| OWR➣Overdue Work Report |
| OWR➣Open Water Regulator (SCUBA) |