| Acronym | Definition |
|---|
| ACMA | Australian Communications and Media Authority |
| ACMA | Academy of Country Music Awards |
| ACMA | American Composites Manufacturers Association |
| ACMA | Automotive Component Manufacturers Association of India |
| ACMA | American College of Mortgage Attorneys |
| ACMA | Associate of the Chartered Institute of Management Accountants (London, UK) |
| ACMA | Associate Chartered Management Accountant |
| ACMA | Arts and Communications Magnet Academy (high school) |
| ACMA | Amateur Classical Musician's Association (New York, NY) |
| ACMA | Association Contre la Maltraitance Animale (French: Association Against Animal Abuse) |
| ACMA | American Cast Metals Association |
| ACMA | Acquisition Career Management Advocate |
| ACMA | Analytic Constant Modulus Algorithm |
| ACMA | Army Class Managing Activity |
| ACMA | Advanced Civil/Military Aircraft |
| ACMA | Alabama Cast Metals Association |
| ACMA | Associate of the Institute of Cost and Management Accountants |
| ACMA | Alumina Ceramic Manufacturers' Association |
| ACMA | Asbestos Cement Manufacturers Association (UK) |
| ACMA | Asociación Colombiana de Mecánicos de Aviación (Spanish) |
| ACMA | Armenian Christian Medical Association (Armenia) |
| ACMA | Association des Collectionneurs de Miniatures Automobiles (French: Miniature Automobile Collectors' Association; Renault) |
| ACMA | Aruba Certified Mobility Associate |
| ACMA | Annals of Clinical Microbiology and Antimicrobials (journal) |