Georg Semper (August 3, 1837 in Altona, Hamburg – February 21, 1909) was a German entomologist who specialised in Lepidoptera.[1]
His Philippine Lepidoptera are in Senckenberg Museum, Frankfurt am Main and his Indomalaya and Australasia specimens are in Staatliches Museum für Tierkunde Dresden. His European insects are in Museum Schleswig-Holstein, Landesk and in the zoological collections of the University of Hamburg. He wrote "Beitrag zur Rhopalocerenfauna von Australien" in the Journal des Museum Godeffroy 14: 138-194, pls 8, 9 (1878) and Die Schmetterlinge der Philippinischen Inseln. Beitrage zur Indo-Malayischen Lepidopteren-fauna. Zweiter Band. Die Nachtfalter. Heterocera Reisen Archipel. Philipp. 2: 381-728 (1896–1902). He worked in association with Museum Godeffroy.
Otto Semper and Carl Semper were his half brothers by their father's first wife.