RRA

RRA can refer to:


 * Arrow-Pratt measure of relative risk-aversion
 * Radioreceptor assay, a test to determine the binding affinity of a radioactive-labelled substance to its receptor
 * Rahanweyn Resistance Army, also known as the Reewin Resistance Army, an armed faction in Somalia
 * Russell Reynolds Associates, a global executive-search, and leadership and succession consulting firm.
 * Rainbow Routes Association, a non-profit organization in Canada dedicated to sustainable and active transportation
 * Rail America Inc., NYSE ticker code RRA
 * Rapid Rural Appraisal, a term for Participatory rural appraisal
 * Reiulf Ramstad Arkitekter, a Norwegian architecture and design studio in Oslo
 * Revenue Reconciliation Act of 1993, US tax reform legislation
 * Round Robin Archive, a database term used by the RRD Editor
 * Red Ribbon Army, a fictional military organization that appears in the Dragon Ball metaseries
 * Road Records Association, a British cycle racing organisation
 * Rock River Arms, an American firearms manufacturing company
 * Internal Revenue Service Restructuring and Reform Act of 1998
 * Rural Reconstruction Association, a British agricultural group
 * Routing and Remote Access, a Microsoft API and server software
 * Richardson Racing Automobiles, a defunct British racing car constructor
 * Religious Research Association, an association of researchers and religious professionals

RRA