Organisations
- Maldives Basketball Association
- Marine Biological Association of the United Kingdom, a UK learned society
- Maschienenbau und Bahnbedarf AG, a named used by Orenstein & Koppel in Nazi Germany
- Metropolitan Basketball Association, a Philippine professional basketball league
- Media Bloggers Association
- Milwaukee Bar Association, a US organization of lawyers in Wisconsin
- Monterey Bay Aquarium
- Montgomery Bell Academy, a college preparatory school in Nashville, Tennessee, USA
- Morbidelli-Benelli Armi, a factory of the Italian motorcycle company Morbidelli
- Mortgage Bankers Association, the national association representing all facets of the real estate finance industry in the USA
- Mountain Bothies Association, UK conservation charity
Read more about this topic: MBA (disambiguation)