NCA
NCA is an abbreviation for:
- N-Carboxyanhydrides , an important class of monomers for the synthesis of polypeptides
- Namibia Commercial Aviation , a small Namibian airline (1992 to 2010)
- National Coffee Association of USA , the trade and lobbying association for the coffee industry in the USA
- National Command Authority , the highest military command in the United States
- National Crime Agency (UK)
- Native cloud application , a program specially designed for a cloud computing architecture
- Nautic Club Austria , an Austrian sailing club (focus on deep sea sailing)
- New Caledonia , UNDP code
- New Central Airservice , a small Japanese airline
- Nicaragua , Olympic country code
- Lithium-nickel-cobalt-aluminum oxides , a class of oxides that are used in lithium-ion batteries as an active material on the positive pole
- Nippon Cargo Airlines , a Japanese cargo airline
- Non Compartmental Analysis , a type of evaluation of pharmacokinetic data
- North Caicos Airport IATA code