| Acronym | Definition |
|---|
| WRO | Write Operand |
| WRO | World Robot Olympiad |
| WRO | Western Regional Office |
| WRO | Warren Rupp Observatory (Ohio) |
| WRO | Wirtschaftsregion Offenburg/Ortenau (German: Offenburg/Ortenau Economic Region; Offenburg and Ortenaukreis, Germany) |
| WRO | World Rescue Organisation |
| WRO | Wroclaw, Poland - Strachowice (Airport Code) |
| WRO | World Regenesis Organization |
| WRO | War Records Office (US DoD) |
| WRO | Work Release Order |
| WRO | War Risk Only |
| WRO | Western Rite Orthodoxy (aka Western Orthodoxy or Orthodox Western Rite) |
| WRO | World Research Organization |
| WRO | Wales Rural Observatory (UK) |
| WRO | Wilhelm Reich Orgoninstitut (Deutschland) |
| WRO | Western Region Oireachtas (US Irish dance) |
| WRO | Wirral Recorder Orchestra (UK) |