RBA are initials that may refer to:
People Rod Brind'Amour, Canadian professional ice hockey player and coach Roberto Bautista Agut, Spanish tennis player
Organizations
Reserve Bank of Australia Ritchie Bros. Auctioneers, Canada, stock exchange symbol Royal Bhutan Army Royal Brunei Airlines. ICAO code Royal Society of British Artists RBA TV, a television station in Belém, Pará, Brazil RBA bank, former Serbian bank
Transportation Sale Airport in Rabat, Morocco, IATA code
Math and science Relative byte address in an Entry Sequenced Data Set Runbook automation, in a computer system or network Other Ranger Body Armor, US Army ballistic vest Regents Bachelor of Arts, a degree program offered by the University System of West Virginia Role-based assessment, in psychology Rudy Bruner Award for Urban Excellence, American award in architecture