| Acronym | Definition |
|---|
| WA | Washington (state; US postal abbreviation) |
| WA | WhatsApp (messaging) |
| WA | What |
| WA | Western Australia |
| WA | Walk Around (boat style) |
| WA | Wenatchee |
| WA | Namibia |
| WA | Weighted Average |
| WA | Work Around |
| WA | Work Area (telephony; wiring locations e.g., from WA to main cross-connect, etc.) |
| WA | Water Authority |
| WA | Woody Allen |
| WA | Woody Allen (celebrity) |
| WA | Wide Area |
| WA | Warrington (postcode, United Kingdom) |
| WA | Wide Awake |
| WA | Winamp (Nullsoft media player) |
| WA | White Album (Beatles album) |
| WA | Weird Al Yankovic (band) |
| WA | Wearable Art |
| WA | Worms Armageddon (game) |
| WA | Wrong Answer |
| WA | Weight For Age |
| WA | Wild Arms (PSX video game) |
| WA | Wide Angle (cinematography) |
| WA | Work Authorization |
| WA | Word After (logging abbreviation) |
| WA | Word After |
| WA | Workflow Automation |
| WA | World Almanac |
| WA | Work Assignment |
| WA | Westford Academy (Westford, MA) |
| WA | Westlake Academy (Texas) |
| WA | Wearing Apparel |
| WA | Wild Ambition (Fatal Fury/SNK game) |
| WA | Weather Advisory |
| WA | Water Agar (mycology) |
| WA | Westminster Academy |
| WA | Wing Attack (sports) |
| WA | Wiseacre |
| WA | Worthy Advisor (International Order of the Rainbow for Girls) |
| WA | Watershed Analysis |
| WA | Web Accelerator (Google) |
| WA | Wilderness Act of 1984 |
| WA | AIRMET |
| WA | Welsh Athletics (UK) |
| WA | Work Authority |
| WA | Wakhi (linguistics) |
| WA | Wassenaar Arrangement |
| WA | Webassign (Online homework system) |
| WA | World Advocates (NGO) |
| WA | Washer, Air |
| WA | Washington Accord (International accreditation for professional engineering degree programs) |
| WA | Weapons Assembly |
| WA | Warning Areas |
| WA | War Arranger (gaming) |
| WA | Weapons Analyst |
| WA | Wallcoverings Association |
| WA | WebAbacus (web analytics software) |
| WA | Wavelength Allocation |
| WA | Weapon Assignment |
| WA | Wabash Railroad Company |
| WA | West Athen |
| WA | West by Air |
| WA | WordsAhead (Vibrant Learning Affiliates literacy program) |
| WA | Waferboard Association |
| WA | Wilkinson's Approximation (algorithm) |
| WA | Witches Anonymous (now Witches Armor for Magickal Protection) |
| WA | Weston Analytics |
| WA | Wake on Arrival |