MR

Mr. is a written abbreviation of Mister.

MR may also refer to:

• Places
  • Magyar Rádió, a Hungarian radio station
  • Mauritania country code
  • Menntaskólinn í Reykjavík, a secondary school in Iceland

• People and organisations
  • Air Mauritania
  • Mahinda Rajapaksa, President of Sri Lanka
  • Master Replicas, a maker of prop replicas
  • Mathematical Reviews, a database of reviews of mathematics publications
  • Midland Railway
  • Mouvement Réformateur, a Belgian political party
  • Mitt Romney, the 71st governor of the Commonwealth of Massachusetts

• Scientific terms
  • Magnetic resonance
  • Magnetoresistance
  • Mental retardation, a developmental disorder
  • Mitral regurgitation, leaking of the mitral valve of the heart
  • Modified READ, a facsimile coding
  • Relative molecular mass

• Miscellaneous
  • Marathi language (ISO 639-1)
  • Marginal Revenue, an economics term
  • Marina and Rainer (1989), one-act chamber opera by Nikolai Korndorf
  • Master of the Rolls, in the UK legal system
  • Maximum Ride a book about human-avian hybrids by James Patterson
  • McCune-Reischauer, a system of romanization for the Korean language
  • MR layout