Ragnar Arthur Granit ForMemRS[1] (30 October 1900 – 12 March 1991)[2] was a Finnish-Swedish scientist who was awarded the Nobel Prize in Physiology or Medicine in 1967[3][4][5] along with Haldan Keffer Hartline[6] and George Wald "for their discoveries concerning the primary physiological and chemical visual processes in the eye".

[7][8][9][10] Ragnar Arthur Granit was born on 30 October 1900 in Riihimäki, Finland, at the time part of the Russian Empire, into a Swedish-speaking Finnish family.

In 1940, when Finland became the target of a massive Soviet attack during the Winter War, Granit sought refuge – and peaceful surroundings for his studies and research work – in Stockholm, the capital of neighbouring Sweden, at the age of 40.

Granit was proud of his Finnish-Swedish roots and remained a patriotic Finnish-Swede throughout his life, maintaining homes in both Finland and Sweden after the Moscow Armistice ended the Continuation War and secured Finnish independence.

Granit and his wife Marguerite, who died the same year, were buried in a church cemetery on the Finnish island of Korpo.