Østrup is a surname. Notable people with the surname include:
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Ernst Østrup (1845–1917), Danish botanist and phycologist, mainly working on diatoms
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Johannes Østrup
Johannes Elith Østrup (27 July 1867 – 5 May 1938) was a Danish philologist and professor at the University of Copenhagen where he served as rector from 1934 to 1935. In 1893, after a study tour in the Middle East, he rode on horseback back to Co ...
(1867–1938), Danish philologist and professor
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Lauritz Christian Østrup
Lauritz Christian Østrup (6 June 1881 – 21 May 1940) was a Danish fencer. He competed at the 1908 and 1912 Summer Olympics
The 1912 Summer Olympics ( sv, Olympiska sommarspelen 1912), officially known as the Games of the V Olympiad ( s ...
(1881–1940), Danish fencer
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