| Acronym | Definition |
|---|
| ATSL➣Along the Same Line |
| ATSL➣Average Time Spent Listening (Internet radio) |
| ATSL➣Associated Transrail Structures Ltd. (India) |
| ATSL➣Advanced Technology Systems Laboratory (Clemson University; Clemson, SC) |
| ATSL➣All the Single Ladies |
| ATSL➣Ada Technology Support Laboratory |
| ATSL➣Above the Sea Level |