RMA

RMA may refer to:

Business and technology

 * Rogue Music Alliance, American independent record label
 * Radio Manufacturers Association, standards and trades association from 1924–1950
 * Regionalmedien Austria, Austrian media company
 * Reliability, Maintainability, and Availability analysis, in reliability and systems engineering
 * Return merchandise authorization, returning goods to the supplier for repair or replacement
 * Relationship Management Application, a service offered by SWIFT
 * Rate-Monotonic Analysis, the qualitative method used to prepare a system for Rate-monotonic scheduling
 * U.S. Rubber Manufacturers Association

Education

 * Randolph-Macon Academy, a preparatory school in Virginia
 * Rubin Museum of Art, a museum in New York City
 * Riverside Museum Associates, a non-profit that supports the Riverside Metropolitan Museum
 * Royal Musical Association, British musicological organization

Government and law

 * Resource Management Act 1991, an Act of Parliament in New Zealand
 * Respect for Marriage Act, a 2022 United States federal law that protects same-sex and interracial marriages.
 * Richmond Metropolitan Authority, an authority in Richmond, Virginia
 * Regional Mobility Authority, an independent local government transportation agency in the U.S. state of Texas
 * Risk Management Agency, an agency of the United States Department of Agriculture
 * Reedley Municipal Airport, a public airport in Reedley, California

Medicine

 * Refusal of medical assistance, where a patient or their medical power of attorney refuses treatment or transport to a hospital by emergency medical services.
 * Registered medical assistant, in jurisdictions where "medical assistant" is a protected title

Military

 * Rocky Mountain Arsenal, near Denver, Colorado
 * Royal Marine Artillery, formerly a part of the Royal Marines
 * Royal Military Academy (disambiguation), several military institutions
 * Reichsmarineamt, the Admiralty of Imperial Germany's navy (historic)
 * Revolution in Military Affairs, the recent rapid development of military technology and its corresponding impact on warfare

Other

 * Contracted form of Real Madrid CF, a football club in Spain
 * MTV Russian Music Awards
 * Roma Airport, IATA airport code "RMA"