ABA kan syfta på AB Aerotransport Academy of Business Administration Agency For Bulgarians Abroad Alberta Bison Association Alexandria Small Business Association American Bakers Association American Bandy Association American Bankers Association American Bantam Association American Baptist Association American Bar Association American Basketball Association American Bioenergy Association American Birding Association American Board of Anesthesiology American Board of Audiology American Bop Association American Booksellers Association American Breweriana Association American Bridge Association American Burn Association American Bus Association Antiquarian Booksellers Association Appalachian Blacksmiths Association Arbejderbevægelsens Bibliotek og Arkiv Asahi Broadcasting Aomori Association for Behavior Analysis Association of Black Anthropologists Asociación de Bancos de la Argentina Associação Brasil América Associação Brasileira de Antropologia Australian Bankers' Association Australian Basketball Association Australian Booksellers Association Australian Breastfeeding Association Australian Broadcasting Authority Austrian Business Agency Autoklub Bohemia Assistance ABA – IATA:s kod för en flygplagts i Abakan, Ryssland, se Abakan Airport