Alexey Diakonoff

| fields = Lepidopterology }} Alexey Nikolaievich Diakonoff (1 March 1907 – 20 September 1989), also transliterated as Alexej Nikolajewitsch Diakonoff, was a Russian–Dutch entomologist who specialised in Microlepidoptera.

His parents immigrated to the Netherlands East Indies where, from 1923, he had his elementary education. Diakonoff then studied biology at the University of Amsterdam. A thesis on Indo-Malayan Tortricidae completed, he returned to Java in 1939 to take up a post as an entomologist at a sugar plantations and industries research station.in 1941 he was offered a position in the Bogor Zoology Museum at Bogor Botanical Gardens but the Japanese invasion intervened. In 1945 he returned to the Netherlands and studied at Leiden Museum working in the Lepidoptera collection. He returned to Bogor as the Dutch tried to regain Java. This failed and in 1951 Diakonoff left Java for the last time. He became Curator of Lepidoptera at the Rijksmuseum van Natuurlijke Historie in Leiden. He was an active member of the Netherlands Entomological Society and a long-time editor of ''Tijdschrift voor Entomologie''. His scientific work in the Leiden museum continued until his death and his collection is conserved in Naturalis. Provided by Wikipedia