| ALD | Academy of Laser 
| Others |
| ALD | Academy of Laser Dentistry
| Others |
| ALD | Accountancy Licensee Database
| Others |
| ALD | Ad Lib Demand
| Others |
| ALD | Adult with Learning Difficulties
| Others |
| ALD | Advanced Linear Devices
| Others |
| ALD | After Labor Day
| Others |
| ALD | Airborne Laser Designator
| Others |
| ALD | Aircraft Landing Dynamics
| Others |
| ALD | Alan Lewis Design
| Others |
| ALD | Alcoholic Liver Disease
| Others |
| ALD | ALDerman
| Others |
| ALD | aldosterone
| Others |
| ALD | All Lithuania Database
| Others |
| ALD | Alpha Lambda Delta
| Others |
| ALD | Alvin Lowell Dahlquist
| Others |
| ALD | Always Learning and Developing
| Others |
| ALD | Animal Legal Defense
| Others |
| ALD | Anoxic Limestone Drain
| Others |
| ALD | Antenna Linkage Device
| Others |
| ALD | Anterior Latissimus Dorsi
| Others |
| ALD | Approximate Lethal Dose
| Others |
| ALD | Arch Length Discrepancy
| Others |
| ALD | Arid Lands Development
| Others |
| ALD | Arithmetic Learning Disorder
| Others |
| ALD | Aspirin-Like Drug
| Others |
| ALD | Assembly Language Debugger
| Others |
| ALD | Assistant Lighting Designer
| Others |
| ALD | Assisted Listening Device
| Others |
| ALD | Assistive Listening Device
| Others |
| ALD | Association for Leadership Development
| Others |
| ALD | Asymmetric Linkage Disequilibrium
| Others |
| ALD | Atlante Linguistico Del
| Others |
| ALD | Atomic Layer Deposition
| Others |
| ALD | Autoimmune/Lymphoproliferative Disorder
| Others |
| ALD | Autoline Detroit
| Others |
| ALD | Autologic Diagnostics
| Others |
| ALD | Automatic Location Detector
| Others |
| ALD | Automatic Locking Differential
| Others |
| ALD | Automatic Log Deletion
| Others |
| ALD | Available Landing Distance
| Others |
| ALD | Available to Load Date
| Others |
| ALD | Available-to-Load Date
| Others |
| ALD | Avara Level Design
| Others |
| ALD | Axle Load Distribution
| Others |