| Acronym | Definition |
|---|
| ASTRO | American Society for Therapeutic Radiology and Oncology |
| ASTRO | Astrodynamics |
| ASTRO | Always Stating the Really Obvious |
| ASTRO | Association of Summer Theatres 'Round Ontario |
| ASTRO | Advanced Scientific and Theoretic Research Organisation (New Zealand) |
| ASTRO | Air Support to Regular Operations (LAPD) |
| ASTRO | Astrophysics Space Observatory |
| ASTRO | Aerospace Systems Technology and Rocket Operations (Cornell University) |
| ASTRO | Army Space Technology Research Office |
| ASTRO | Automated Structural Optimization System |
| ASTRO | All-Asian Satellite Television and Radio Co. |
| ASTRO | Autonomous Space Transfer & Robotic Orbiter |
| ASTRO | Allinger Stern Rosler (bridge game) |
| ASTRO | Aleph STrip Read-Out Scanner |
| ASTRO | Automated Scheduling Tools for Range Operations |
| ASTRO | ASW Test Requirements Outline |