| Acronym | Meaning |
| VV&A | Verification, Validation, And Accreditation |
| VVAF | Vietnam Veterans Of America Foundation |
| VW | Volkswagen |
| VZ | Verizon Communications (NYSE Code) |
| VZW | Vereniging Zonder Winstoogmerk (Dutch Non-profit Organisation) |
| W | Tungsten (from German Wolfram) - Watt - West |
| W/ | With: Software W/Documentation. Typically Used In Advertising Or To Abbreviate Headings. Never Used In Formal Body Text. |
| W/O | Without: Software W/o Documentation |
| W3C | World Wide Web Consortium |
| WA | Namibia (FIPS 10-4 Country Code; From West Africa) - Washington State (postal Symbol) - Western Australia (postal Symbol) |
| WA | Walloon Language (ISO 639-1 Code) |
| WAAC | Women's Army Auxiliary Corps (WWII UK) |
| WAAF | Women's Auxiliary Air Force (WWII UK) |
| WAC | Women's Auxiliary Corps (WWII Canada) |
| WACC | Weighted Average Cost Of Capital (accounting) |
| WACS | What-A-Cartoon! Show |
| WAD | Weapons Alert Designator |
| WAGS | Wives And Girlfriends (of England National Football Team Players At The 2006 FIFA World Cup) |
| WAK | Wake Island (ISO 3166 Trigram |
| WAN | Wide Area Network |
| WAP | Wireless Application Protocol |
| WASP | White Anglo-Saxon Protestant - Wide Angle Search For Planets - Women Airforce Service Pilots |
| WASP | Short Form Of WAAAAP (Wind Atlas Analysis And Application Program) |
| WAYP | White And Yellow Pages |
| WB | Warner Brothers - Welcome Back (Internet Short-hand) |
| WB | Weber |
| WBE | Work Breakdown Element |
| WC | Water Closet - Winston Churchill - World Cup (sports) |
| WCBO | World Chess Boxing Organisation |
| WCBP | World Centre For Birds Of Prey |
| WCL | World Confederation Of Labour |
| WCS | Weapon Control Status - Wildlife Conservation Society |
| WCW | World Championship Wrestling |
| WDC | Western Design Center - World Data Center |
| WDWR | Walt Disney World Resort |
| WEBS | Weapon Effectiveness Battle Simulation |
| WEEE | Waste Electrical And Electronic Equipment |
| WEU | Western European Union |
| WEZ | Weapon Engagement Zone |
| WF | Wallis And Futuna Islands (ISO 3166 Digram) |
| WFC | Women's Forage Corps (WWII UK) |
| WFD | Weaponof Focused Destruction |
| WFF | Wallops Flight Facility |
| WFP | World Food Program |
| WFZ | Weapons Free Zone |
| WG | Working Group - Wade-Giles |
| WGS 84 | World Geodetic System 1984 |
| WH | Wehrmacht Heer (German WW2 Army Vehicle Licence Plate Code) |
| WHAM | Wisconsin Hydrogen-Alpha Mapping (telescope) |
| WHI | Women's Health Initiative |