| Acronym | Definition |
|---|
| WAAA | Washington Autism Alliance & Advocacy |
| WAAA | Washtenaw Area Apartment Association (Ann Arbor, MI) |
| WAAA | Wausau Area Apartment Association (Mosinee, WI) |
| WAAA | Western Alliance of Arts Administrators |
| WAAA | Warlukurlangu Artists Aboriginal Association (Australia) |
| WAAA | Wisconsin Automotive Aftermarket Association (Madison, WI) |
| WAAA | West Albany Athletic Association |
| WAAA | Woodward Avenue Action Association (Royal Oak, MI) |
| WAAA | War Affected Amputee Association (South Africa) |
| WAAA | West Allis Art Alliance |
| WAAA | Western Armenian Athletic Association |
| WAAA | Westchester Academy Alumni Association |