RSM may refer to:

Companies

  • RSM Global, worldwide accountancy & professional services network
  • RSM US, a tax, accounting and consulting firm based in Chicago
  • RSM UK
  • RSM Singapore
  • RSM Tenon, defunct professional services network in the UK
  • RSM Robson Rhodes, defunct professional services network in the UK
  • Reliable Source Music, an independent production music company
  • Renault Samsung Motors, a South Korean motor manufacturer

Institutions

  • Rotterdam School of Management (RSM Erasmus University), the business school of Erasmus University, Rotterdam
  • Royal Saskatchewan Museum, a museum in Regina, Saskatchewan
  • Royal School of Mines, an institute of higher education in London, England
  • Royal Society of Medicine, a British medical society
  • Russian School of Mathematics, an after-school mathematical education program based in Massachusetts

Other organizations

  • Radioamaterski Sojuz na Makedonija, an amateur radio organization in the Republic of Macedonia
  • Religious Order of the Sisters of Mercy, an order of Catholic women
  • Rete degli Studenti Medi, Italian High School and VET student union
  • Russian Socialist Movement, a socialist political party in Russia
  • Rassemblement Saint-Martinois, a political party in Saint Martin
  • Rashtriya Sanjay Manch, a political party in India

Military

  • Regimental sergeant major a warrant officer appointment in the British and most Commonwealth armies and the Royal Marines
  • Resolute Support Mission, a NATO mission in Afghanistan from the end of 2014
  • Radio Squadron, Mobile, signal intelligence squadrons of the United States Air Force Security Service

Places

  • Rancho Santa Margarita, California, a city in California
  • Republic of San Marino, a country in southern Europe
  • Vehicle registration plates of San Marino

Science and technology

  • Rating scale model, a model used in Item Response Theory
  • Reciprocal Space Map, a crystallographic method
  • Response surface methodology, sequential experimentation for improvement and for finding an optimal response
  • Reynolds stress model, a method in Computational fluid dynamics for modeling turbulence
  • Route Switch Module, a component of a powered device that provides network routing services
  • RNA-targeting small molecule drugs, a class of organic compounds with traditional drug properties

Other uses

  • R. Stevie Moore (born 1952), American singer-songwriter
  • Rolling Stones Mobile Studio, a mobile recording studio