| Acronym | Meaning |
| MCCA | Marine Corps Cryptologic Association |
| MCCA | Medicare Catastrophic Coverage Act of 1988 (federal law) |
| MCCA | Military Child Care Act of 1989 (USA) |
| MCCA | Military Construction Cooperative Agreement |
| MCCA | Ministerial Council on Consumer Affairs (Australia) |
| MCCA | Minnesota Community Corrections Association (Minneapolis, MN) |
| MCCA | Mission-Critical Custom Applications |