| Abbreviation | Definition |
|---|---|
| WCRR | Wisconsin Central RailRoad |
| WCRX | West Coast Resources (United Grain Corporation) |
| WCSX | Savage-Tolk Energy Services (GE Rail Services) |
| WCSX | Wheelabrator Coal Services Company |
| WCTR | W C T U Railway Company |
| WCTR | WCTU Railway (Rogue Valley Terminal Railroad) |
| WCTU | W C T U Railway Company |
| WCTU | WCTU Railway (Wiencont Management) |
| WCTX | Resource Recycling Incorporated |
| WCTX | West Central Cooperative |
| WDAX | Washington Department of Agriculture |
| WDLR | War Department Light Railways |
| WDLR | Waterford, Dungarvan, and Lismore Railway |
| WE | Wheeling and Lake Erie Railway |
| WE | Wheeling and Lake Erie Railway Company |
| WECX | Westinghouse Electric Corporation |
| WEIX | Wilbur-Ellis |
| WEIX | Wilbur-Ellis Company |
| WELR | Windsor, Essex, & Lake Shore Railway |
| WELX | Welland Chemical |