| Acronym | Definition |
|---|
| ACSL | Advanced Continuous Simulation Language |
| ACSL | Advanced Continuous Simulation Language (AEgis Technologies Group, Inc.) |
| ACSL | American Computer Science League |
| ACSL | Assistant Cub Scout Leader |
| ACSL | Altocumulus Standing Lenticular Clouds (often confused for UFOs) |
| ACSL | Alternate Crops and Systems Laboratory |
| ACSL | Abrams Common Software Library (US Army) |
| ACSL | Association Control Service Element |
| ACSL | Advanced Chemical Science Laboratory (US National Institute of Standards and Technology) |
| ACSL | Asociación de Caridad San Lucas (San Lucas, Guatemala Association of Charity) |
| ACSL | Asian CounterStrike Source League (gaming) |
| ACSL | Analytical Chemistry Services Laboratory |