| Acronym | Meaning |
| ALD | Accelerated Life Data |
| ALD | Accounting Line Designator |
| ALD | Acquisition Logistics Division |
| ALD | Acquisition Logistics Documents |
| ALD | Administrative Law Division (various locations) |
| ALD | Advanced Laser Designator |
| ALD | Air Lift Division |
| ALD | Airborne Laser Demo |
| ALD | Airborne Laser Designator (US DoD) |
| ALD | Aircraft Logistics Department |
| ALD | Alderman |
| ALD | American Law Division (Congressional Research Service) |
| ALD | Approximate Lethal Dose |
| ALD | Arakan League for Democracy |
| ALD | Assembly Line Diagram |
| ALD | Assistant Laboratory Director |
| ALD | At a Later Date |
| ALD | Automatic Logic Diagram |
| ALD | Available Landing Distance (aviation) |
| ALD | Available-to-Load Data |
| ALD | Available-to-Load Date |
| ALD | Aviation Logistics Department |
| ALD | Aviation Logistics Division |