| Acronym | Definition |
|---|
| ASTD➣American Society for Training and Development |
| ASTD➣American Society of Training and Development (Alexandria, Virginia) |
| ASTD➣Air-Sea Temperature Difference |
| ASTD➣Air Supported Threat Defense |
| ASTD➣Activity-Related Soft Tissue Disorder (overuse or repetitive strain injuries) |
| ASTD➣Antiship Torpedo Defense (System) |
| ASTD➣Advanced Systems and Technology Department (NASA) |
| ASTD➣Associate of the Society of Typographic Designers |