Arent Greve de Besche (4 December 1878 – 16 September 1945) was a Norwegian bacteriologist.
He was born in Kristiania as a son of Oscar de Besche (1846–1909) and Anna Sophie Løberg.
His father owned the newspaper Morgenbladet,[1] so did his grandfather Johan Gerhard de Besche.
He worked as a hospital assistant from 1906 to 1912, except for half a year in 1908 when he studied in Berlin (under Georg Theodor August Gaffky and August von Wasserman) and Belitz.
[1] In June 1914 in Bærum he married Anita Iversen, born in Spain to a consul.