| Acronym | Definition |
|---|
| WAA | Weird and Awkward |
| WAA | War Assets Administration |
| WAA | Wales, Alaska (Airport Code) |
| WAA | Woodstock Artists Association (est. 1920) |
| WAA | World Apheresis Association |
| WAA | Web Analytics Association (Washington, DC) |
| WAA | Warm Air Advection |
| WAA | Wheat Amino Acid |
| WAA | Western Arts Alliance (Portland, OR) |
| WAA | Waste Accumulation Area |
| WAA | Web Assisted Assessment |
| WAA | Web Application Architecture |
| WAA | Wide-Aperture Array |
| WAA | Wireless Advertising Association |
| WAA | Walk across America |
| WAA | World A Cappella Association |
| WAA | Wisconsin Alternate Assessment |
| WAA | Wisconsin Aquaculture Association |
| WAA | Waffen Amt (German: weapons office) |
| WAA | Westchester Amateur Astronomers (New York) |
| WAA | Wisconsin Auctioneers Association |
| WAA | Wartime Aircraft Activity |
| WAA | Wellington Animal Action |
| WAA | Work Authorization and Agreement |