| ACAC | A Cappella Advisory Council 
| Others |
| ACAC | Abbreviations Com Academic Computing
| Others |
| ACAC | ACAC Of course Alberta Colleges
| Others |
| ACAC | Academic and Career Advisement Center
| Others |
| ACAC | Academic and Career Advising Center
| Others |
| ACAC | Academic Computing Advisory Committee
| Others |
| ACAC | Academic Computing Advisory Council
| Others |
| ACAC | acetoacetic acid
| Others |
| ACAC | acetyl-coenzyme A cocarboxylase
| Others |
| ACAC | Acetylacetone ACAC Acetoacetate ACAC
| Others |
| ACAC | Adria Commission for Arts Culture
| Others |
| ACAC | Agree, Confirm, Answer, and Close
| Others |
| ACAC | Air Conditioning At Cost
| Others |
| ACAC | Alberta College Athletic Conference
| Others |
| ACAC | Alberta Colleges Athletics Conference
| Others |
| ACAC | All a Cappella Auditions Council
| Others |
| ACAC | Allegheny Center Alliance Church
| Others |
| ACAC | Allen Chapman Activity Center
| Others |
| ACAC | Allen County Athletic Conference
| Others |
| ACAC | Allied Churches of Alamance
| Others |
| ACAC | Allied Churches of Alamance County
| Others |
| ACAC | Always Clean Air Cabin
| Others |
| ACAC | Amador County Arts Council
| Others |
| ACAC | American College Application Campaign
| Others |
| ACAC | American Council for Accredited Certification
| Others |
| ACAC | Ames Cyclone Aquatics Club
| Others |
| ACAC | Another Choice Another Chance
| Others |
| ACAC | Area Clinical Audit Committee
| Others |
| ACAC | Association Champenoise des Automobiles de Collection
| Others |
| ACAC | Association for Child and Adolescent Counseling
| Others |
| ACAC | Athens Cultural Affairs Commission
| Others |
| ACAC | Atlanta Community Access Coalition
| Others |
| ACAC | Atlanta Competitive
| Others |
| ACAC | Atlanta Competitive Advantage
| Others |
| ACAC | Atlanta Competitive Advantage Conference
| Others |
| ACAC | Atlanta Contemporary Art Center
| Others |
| ACAC | Atlantic Coast Athletic Club
| Others |
| ACAC | Atomic City Aquatic Club
| Others |
| ACAC | Austin Creative Art Center
| Others |
| ACAC | Auto Credit Assistance Corporation
| Others |
| ACAC | Automobile Club Andre Citroen
| Others |
| ACAC | AVIC i Commercial Aircraft Company
| Others |
| ACAC | Colombian Association for the Advancement of Science
| Others |