| Acronym | Definition |
|---|
| ALSS | Advanced Logistic Support Site (US DoD) |
| ALSS | Aviation Life Support Specialist (US DoD) |
| ALSS | Airlock Support System (US NASA) |
| ALSS | Alstrom Syndrome |
| ALSS | Advanced Life Support System |
| ALSS | Aviation Life Support System |
| ALSS | Administrative and Logistics Security Specialist |
| ALSS | Aboriginal Living Skills School (Prescott, Arizona) |
| ALSS | Advanced Location Strike System |
| ALSS | Aktion Luna-Stumme Schreie (German: Action Luna Silent Scream) |
| ALSS | Acquisition Logistics Support Specification |
| ALSS | Assisted Living Software Systems |