Edmund Hansen Grut (15 January 1831 – 13 June 1907) was a Danish ophthalmologist born in Copenhagen.
In 1857 he earned his medical doctorate at the University of Copenhagen, and afterwards traveled to Berlin, where he studied with Albrecht von Graefe (1828-1870).
By 1880, the Havnegade clinic had 19 beds for patients, and on the average performed around 100 cataract surgeries per year.
It was also a centre of training for ophthalmology students, where men such as Jannik Petersen Bjerrum (1851-1920), Marius Tscherning (1854-1939) and Gordon Norrie (1855-1941) worked as assistants.
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