| Acronym | Definition |
|---|
| NMCA | National Marine Conservation Area |
| NMCA | National Muscle Car Association |
| NMCA | New Mexico Court of Appeals |
| NMCA | National Marine Charter Association (Washington DC) |
| NMCA | Norwegian Mapping and Cadastre Authority |
| NMCA | National Missionary Council of Australia |
| NMCA | Nation Magazine Cover Archive |
| NMCA | New Museum of Contemporary Art |
| NMCA | New Mexico Counseling Association |
| NMCA | noble metal chemical addition |
| NMCA | Nebraska Mediation Center Association (Eagle, NE) |
| NMCA | New Mexico Chiropractic Association (Albuquerque, NM) |
| NMCA | Northeastern Mosquito Control Association, Inc. |
| NMCA | National Memorial Cemetery of Arizona (Phoenix, AZ) |
| NMCA | Noble Metal Chemical Application |
| NMCA | National Meat Canners Association |
| NMCA | Nebraska Municipal Clerks' Association |
| NMCA | National Mossberg Collectors Association (Festus, MO) |
| NMCA | National Mapping and Cadastral Agency |
| NMCA | New Mexico Corvette Association |
| NMCA | Northern Michigan Christian Academy |
| NMCA | nasal minimal cross-sectional area |
| NMCA | Neapolitan Mastiff Club of America (Vienna, NJ) |
| NMCA | New Mexico Corrections Academy |
| NMCA | National Museum for Contemporary Art |
| NMCA | New Mexico Correctional Association |
| NMCA | National Motor Club of America, Inc. |
| NMCA | National Motor Carrier Administration |
| NMCA | National Military Command Authority |
| NMCA | New Millennium Challenge Account |
| NMCA | National Music Critics Association |
| NMCA | New Mexico Chile Association |
| NMCA | New Mexico Carriage Association |
| NMCA | National Music Camp Association (now Australian Youth Orchestra Ltd.) |
| NMCA | Norwegian Medicines Control Agency |
| NMCA | National Mapping Council of Australia |
| NMCA | National Media Credit Association (New York, NY) |
| NMCA | New Mexico Cyber Academy |
| NMCA | Nippon Motor Cycle Association |
| NMCA | New Marxian Class Analysis |
| NMCA | Norbeck Meadows Civic Association (Olney, MD) |
| NMCA | New Majority California |
| NMCA | Nebraska Motor Carriers Association |
| NMCA | National Motor Carrier Advisory |
| NMCA | Nottingham Malayalee Cultural Association |
| NMCA | North Montrose Civic Association (Houston, TX) |
| NMCA | Newcastle Muungano Community Association |
| NMCA | Northumberland Masonic Charity Association |
| NMCA | New Media Construction Awards |
| NMCA | Navy Mothers Clubs of America |
| NMCA | National Meteorological Center Analysis |
| NMCA | N-nitrosomethyl-cyclohexylamine |
| NMCA | Newmarket Community Arena |
| NMCA | NATO Multirole Combat Aircraft |
| NMCA | National Mortgage Corporation of America |
| NMCA | Not Mission Capable Airworthy |
| NMCA | Nazarene Missional Church Assessment |
| NMCA | Northern Michigan Coaches Alliance |
| NMCA | New Mexico Cardiovascular Associates, PC |