| Acronym | Definition |
|---|
| ACLS | Advanced Cardiac Life Support |
| ACLS | American Council of Learned Societies (New York, NY) |
| ACLS | Annals of Clinical and Laboratory Science (publication; Association of Clinical Scientists) |
| ACLS | Adult and Community Learning Services |
| ACLS | Acrocallosal Syndrome |
| ACLS | Association of Canada Lands Surveyors |
| ACLS | Air Cushion Landing System |
| ACLS | All-weather Carrier Landing System |
| ACLS | Auto Carrier Landing System |
| ACLS | Automated Control & Landing System |
| ACLS | Autoshift Common Low Side |
| ACLS | Automated/Automatic Carrier Landing System |
| ACLS | Anticardiolipin Syndrome (blood clotting disorder) |
| ACLS | Advanced Computer Lab for Shipbuilding (University of New Orleans) |