Karl Harald Adolf Haanshus (December 26, 1860 – January 3, 1936) was a Norwegian physician and entomologist.
He was its vice chairman from 1933 to 1935, and he was also a member of the editorial committee of the Norwegian Journal of Entomology.
[2][3] He received a medical degree in 1888 and practiced for ten years as a city physician (bylege) in Fredrikstad.
He then moved back to Kristiania, where he worked as a pediatrician until his death on January 3, 1936.
[2][3][4] Haanshus published a number of articles, especially in Norsk Entomologisk Tidsskrift.