| Acronym | Definition |
|---|
| AOCA | Automotive Oil Change Association |
| AOCA | Antiochian Orthodox Christian Archdiocese |
| AOCA | Asociación de Organizadores de Congresos de Argentina (Spanish: Argentina Congress Organizers Association; Argentina) |
| AOCA | AfriOceans Conservation Alliance |
| AOCA | Airline Oxygen Council of America |
| AOCA | Associate of the Ontario College of Art |
| AOCA | Apprenticeship and Occupational Certification Act (Canada) |
| AOCA | Army Otter Caribou Association |
| AOCA | American Osteopathic College of Anesthesiologists |
| AOCA | Association for Ophthalmic Cooperation to Asia |
| AOCA | Acousto Optic Cell Array |
| AOCA | anomalous origin of a coronary artery |
| AOCA | Association Outstanding Chapter Award |
| AOCA | Australian Owned Companies Association |
| AOCA | Art of Construction Australia |
| AOCA | American Oil Chemists Association |
| AOCA | advanced operator correlation algorithm |
| AOCA | Australian Olympic Coordinating Authority |
| AOCA | Australian Oral Care Alliance |
| AOCA | Association of Orthodox Christian Attorneys |
| AOCA | Alternate Outpatient Care Areas (temporary ambulatory care areas) |