| Abbreviations Starting With W (not actively used) | |
| WABI | Windows Application Binary Interface (Sun Microsystems) |
| WDOG | Watchdog protocol (Novell) |
| WFM | Wired For Management (standard developed by Intel to manage PC/hardware over network) |
| WFW | Windows For Workgroups (Microsoft) |
| WIT | Web (W3) Interactive Talk |
| WNN | Weighted Neural Network |
| WSN | Wang Span Network [protocol number 74] |
| WP-HTTP | Wireless Profiled HTTP |
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