| Acronym | Definition |
|---|
| UAA | Universal Audio Architecture |
| UAA | University Athletic Association |
| UAA | University of Alaska Anchorage |
| UAA | Unknown Amino Acid |
| UAA | University Alumni Association |
| UAA | Undeliverable As Addressed |
| UAA | User Authorization Answer |
| UAA | Unified Access Architecture |
| UAA | Universal Assigned Address |
| UAA | University Aviation Association |
| UAA | Universidad Autónoma de Aguascalientes (Mexico) |
| UAA | Undergraduate Academic Affairs (various universities) |
| UAA | Uyghur American Association |
| UAA | Uniform Accountancy Act (US) |
| UAA | Urban Affairs Association |
| UAA | Utilised Agricultural Area |
| UAA | University of Addis Ababa (Ethiopia) |
| UAA | Use Attainability Analyses |
| UAA | Utility Arborist Association |
| UAA | United Arab Airlines (now Egypt Air) |
| UAA | Uniform Adoption Act |
| UAA | Unified Access Architecture (ACT Networks, Inc.) |
| UAA | Utah Apartment Association |
| UAA | Unified Audio Architecture |
| UAA | User Awareness Agreement |
| UAA | Universal Application Architecture |
| UAA | UnternehmensAnwendungsArchitektur |
| UAA | United Action for Animals |
| UAA | UNO Accessibility API |
| UAA | Ukraine Air Alliance (airline) |
| UAA | Underground Action Alliance |
| UAA | Utah Alternate Assessment |
| UAA | Ultimate Alien Anthology (Star Wars game) |
| UAA | Uskudar American Academy (high school; Turkey) |
| UAA | Undergraduate Alumni Association |
| UAA | Universal Administered Address |
| UAA | Uganda Artists Association |
| UAA | United Anarchists of America |
| UAA | Union of African Architects |
| UAA | Urology Administration Assembly (Medical Group Management Association) |
| UAA | Urgent Action Appeals (Amensty International) |
| UAA | Uracil-Adenine-Adenine |
| UAA | Ukrainian Alumni Association |
| UAA | Unit Assembly Area |
| UAA | United Azerbaijan Association |
| UAA | University of Aviation Association |
| UAA | Unity of Action Accord |
| UAA | User Authority Agent |
