| Acronym | Definition |
|---|
| MARCA | Markov Chain Analyzer (modeling software) |
| MARCA | Model A Restorers Club of Arizona (Mesa, AZ) |
| MARCA | Mystery Animal Research Centre of Australia |
| MARCA | Mid-American Rare Coin Auctions |
| MARCA | Mid-continent Area Reliability Coordination Agreement |
| MARCA | Michiana Area Roofing Contractors Association (South Bend, IN) |
| MARCA | Mobile Arena Case |
| MARCA | Monopulse Azimuth Range and Code Assembler |
| MARCA | Managing Assets and Resources to provide a Coordinated approach to Aging (MARCA, Inc.; Birmingham, AL) |
| MARCA | Michigan American Rehabilitation Counseling Association |
| MARCA | Master of Arts Royal College of Art (UK) |