INR

INR or Inr may refer to:

Biology

 * Initiator element, a core promoter in genetics
 * International normalized ratio of prothrombin time of blood coagulation
 * Interventional neuroradiology, a minimally invasive medical speciality

Organizations

 * Bureau of Intelligence and Research of the U.S. State Department
 * Institute of National Remembrance, a Polish research institute
 * Institute for Nuclear Research of the Russian Academy of Sciences
 * Instituto Nacional de Rehabilitación, a public health institute in Mexico
 * Institut national belge de radiodiffusion, French name of the predecessor (1930–1960) of the Belgian public broadcasting organization RTBF

Currency

 * Indian rupee, by ISO 4217 currency code

Other uses

 * Independent National Radio, the official term for national commercial radio stations in the United Kingdom
 * McKinley National Park Airport, Alaska, USA, FAA identifier
 * International Railway (New Brunswick) A former rail line in the province of New Brunswick, in Canada