| UACB | Universal Academy for the College Bound 
| Others |
| UACB | Unless Advised to Contrary by the Bureau
| Others |
| UACC | Aqmola (Tselinograd), Kazakhstan
| Others |
| UACC | Unconditional Acceleration
| Others |
| UACC | United American Capital Corporation
| Others |
| UACC | United American Catholic Church
| Others |
| UACC | United Arab Chemical Carriers
| Others |
| UACC | United Armenian Congregational Church
| Others |
| UACC | United Auto Collision Center
| Others |
| UACC | Universal Access Authority
| Others |
| UACC | Universal Autograph Collector's Club
| Others |
| UACC | University Advising and Career Center
| Others |
| UACC | Urban Agriculture Collective of Charlottesville
| Others |
| UACC | Urology Associates of Cape Cod
| Others |
| UACCB | University of Arkansas Community College at Batesville
| Others |
| UACCH | University of Arkansas Community College at Hope
| Others |
| UACCM | University of Arkansas Community College at Morrilton
| Others |
| UACDS | Uniform Ambulatory Care Data Set
| Others |
| UACDS | Uniform Ambulatory Core Data Set
| Others |
| UACE | Uganda Advanced Certificate of Education
| Others |
| UACK | User Acknowledgment
| Others |
| UACM | Union Automobile Club du Maroc
| Others |
| UACN | UAE Astronomical Cameras Network
| Others |
| UACN | United Africa Company of Nigeria
| Others |
| UACR | Upper Arm Circumference Relaxed
| Others |
| UACR | Urinary Albumin Creatinine Ratio
| Others |
| UACR | Urinary Albumin to Creatinine Ratio
| Others |
| UACR | Urine Albumen to Creatinine Ratio
| Others |
| UACR | Urine Albumin Creatinine Ratio
| Others |
| UACR | Urine Albumin to Creatiine Ratio
| Others |
| UACR | Urine Albumin to Creatinine Ratio
| Others |
| UACR | Utah Air Conservation Rules
| Others |
| UACRR | Ukrainian Agency of Copyright and Related Rights
| Others |
| UACT | University of Advancing Computer Technology
| Others |
| UACT | User Account Control Team
| Others |
| UACU | UNC (University of North Carolina) Alumni Credit Union
| Others |
| UACU | Unitat d
| Others |
| UACU | United Arab Shippers
| Others |
| UACU | United Arab Shipping
| Others |
| UACU | United Association Credit Union
| Others |
| UACU | User Adjustable Control Unit
| Others |
| UACV | Unmanned Aerial Combat Vehicle
| Others |
| UACV | Unpasteurized Apple Cider Vinegar
| Others |
| UAD | Ukraine Administrative Divisions
| Others |
| UAD | Ultimate Air Dogs
| Others |
| UAD | Ultimate Audio Dealer
| Others |
| UAD | Ultra Akriloth Dragon
| Others |
| UAD | Uluslararasi Adalet Divani
| Others |
| UAD | Under Age Driver
| Others |
| UAD | Under Agreement Dated
| Others |