| Acronym | Definition |
|---|
| ODCA | Organización Demócrata Cristiana de América |
| ODCA | Oregon Dry Cleaners Association |
| ODCA | Ontario Drum Corps Association (Ontario, Canada) |
| ODCA | One-Design Class Association |
| ODCA | Open Door Christian Academy (Fort Washington, PA, USA) |
| ODCA | Old Downtown Carrollton Association (Texas) |
| ODCA | Orillia and District Construction Association (Ontario, Canada) |
| ODCA | Oracle Database Configuration Agent |
| ODCA | Old Dominion Civic Association (Arlington, VA) |
| ODCA | Ontology-Driven Conceptual Analysis |
| ODCA | Ocean Dumping Control Act (Canada) |
| ODCA | Office of Dutiable Commodities Administration (Hong Kong) |
| ODCA | Office for Diversity and Cultural Affairs |
| ODCA | Oakleigh District Cricket Association (Australia) |
| ODCA | Ordered Dynamic Channel Assignment with Rearrangement |
| ODCA | Old Dominion Checker Association |
| ODCA | Organization for the Development of Chemistry and Chemical Technology in Asia |
| ODCA | Oregon Desert Conservation Act |
| ODCA | Overseas Development and Co-operation Act 1980 (UK) |
| ODCA | Occupational Disease Compensation Act |
| ODCA | Opel Drivers Club of America |
| ODCA | Office of the Defense Cooperation Attaché |
| ODCA | Open Data Center Alliance (cloud computing) |
| ODCA | Office of The Director of Consumer Affairs (Ireland) |
| ODCA | Original Data Collection and Analysis |
| ODCA | Office of the District of Columbia Auditor |