| Abbreviation | Definition |
|---|---|
| WHN | Wind Hydrogen Ltd |
| WHNO | Whl Energy Limited |
| WHS | Warehouse Group Ltd (The) |
| WIC | Westoz Investment Company Limited |
| WICO | Westoz Investment Company Limited |
| WIG | Wilson HTM Investment Group Ltd |
| WLF | Wolf Minerals Ltd |
| WLFO | Wolf Minerals Limited |
| WLL | Wellcom Group Ltd |
| WMN | Western Manganese Limted |
| WMNO | Western Manganese Limited |
| WNI | Wah Nam International Holdings Limited |
| WNIO | Wah Nam International Holdings Limited |
| WNS | World.Net Services Ltd |
| WOR | WorleyParsons Ltd |
| WORKMA | Worleyparsons Limited |
| WORKMP | Worleyparsons Limited |
| WORKOA | Worleyparsons Limited |
| WORKOP | Worleyparsons Limited |
| WORKRA | Worleyparsons Limited |