Julius Leopold Fredrik Krohn was a Finnish folk poetry researcher, professor of Finnish literature, poet, hymn writer, translator and journalist. He was born in Viipuri and was of Baltic German origin. Krohn worked as a lecturer on Finnish language in Helsinki University from the year 1875 and as a supernumerary professor from 1885. He was one of the most notable researchers into Finnish folk poetry in the 19th century. His native language was German.
