| Acronym | Definition |
|---|
| COAC | Customs Operations Advisory Committee |
| COAC | Council on Adoptable Children (New York) |
| COAC | Center for Orang Asli Concerns (Malaysia) |
| COAC | Commercial Operations Advisory Committee (US Customs) |
| COAC | Cooper Oates Air Conditioning (Sacramento, CA) |
| COAC | Correspondant Académique (French: Academic Correspondent) |
| COAC | Commanding Officer, Atlantic Coast (US Navy) |
| COAC | Coinage of the Americas Conference |
| COAC | Collegi d'Arquitectes de Catalunya |
| COAC | Combined Air and Space Operations Center (US Air Force) |
| COAC | Christ on a Cracker |