| ACSS | Academic and Cultural Sharing Scholarship 
| Others |
| ACSS | Adult and Commuter Student Services
| Others |
| ACSS | Advisory Council on Stewardship and Sustainability
| Others |
| ACSS | Africa Center for Strategic Studies
| Others |
| ACSS | Afro Celt Sound System
| Others |
| ACSS | Alcatel Certified Switch Specialist
| Others |
| ACSS | Aldergrove Community Secondary School
| Others |
| ACSS | Aluminium-Conductor Steel Supported
| Others |
| ACSS | Aluminum Conductor Steel Supported
| Others |
| ACSS | American College of Spine Surgery
| Others |
| ACSS | Arkansas Council for the Social Studies
| Others |
| ACSS | Association of Chinese Students
| Others |
| ACSS | Atlanta Center for Self Sufficiency
| Others |
| ACSS | Aural Cascading Style Sheets
| Others |
| ACSS | Austin Cactus and Succulent Society
| Others |
| ACSS | Automated Clearing Settlement System
| Others |
| ACSS | Automotive Cloud Service System
| Others |
| ACSS | Automotive Cyber Security Summit
| Others |
| ACSS | Aviation Communication Surveillance System
| Others |
| ACSS | Aviation Communications & Surveillance Systems
| Others |