| ADU | Accessory Dwelling Unit 
| Others |
| ADU | Accessory Dwelling Units
| Others |
| ADU | Active Dossier Uploader
| Others |
| ADU | Additional Dwelling Units
| Others |
| ADU | Advanced Display Unit
| Others |
| ADU | Affordable Dwelling Unit
| Others |
| ADU | Affordable Dwelling Units
| Others |
| ADU | African Democratic Union
| Others |
| ADU | Air Defense Unit
| Others |
| ADU | Airbag Diagnostic Unit
| Others |
| ADU | Aironet Desktop Utility
| Others |
| ADU | Alien Defence Unit
| Others |
| ADU | Alien Defense Unit
| Others |
| ADU | Allien Deffender Unit
| Others |
| ADU | American Digital University
| Others |
| ADU | Analog Digital Unit
| Others |
| ADU | Analog Digital Units
| Others |
| ADU | Analog to Digital Unit
| Others |
| ADU | Analog to Digital Units
| Others |
| ADU | Analog-to-Digital Unit
| Others |
| ADU | Another Drunken Underkaing
| Others |
| ADU | Antenna Drive Unit
| Others |
| ADU | Anti-Discrimination Unit
| Others |
| ADU | Appliance Distributors Unlimited
| Others |
| ADU | Appliance Distributors Unlimited, Inc.
| Others |
| ADU | Application Data Unit
| Others |
| ADU | Application Definition Utility
| Others |
| ADU | Ardabil, Iran
| Others |
| ADU | Arizona Driving Universe
| Others |
| ADU | Arnie Demolition Unit
| Others |
| ADU | Array Diagnostic Utility
| Others |
| ADU | Array Diagnostics Utility
| Others |
| ADU | Artistic Dance Unlimited
| Others |
| ADU | Astronomical Distance Unit
| Others |
| ADU | Atmospheric Distillation Unit
| Others |
| ADU | Audience Deficiency Unit
| Others |
| ADU | Auto Drivers Union
| Others |
| ADU | Automatic Dialing Unit
| Others |
| ADU | Automatic Duplex Unit
| Others |
| ADU | Automatic Duplexing Unit
| Others |
| ADU | Autonomous Driving Unit
| Others |
| ADU | n-Acetyl-DeoxyUridine
| Others |