Sven Sømme (19 November 1904 – 2 December 1961) was a Norwegian zoologist and ichthyologist.
He was born in Ringsaker to physician Jacob Dybwad Sømme and Helene Sofie Sørensen.
He was a brother of zoologist Iacob Dybwad Sømme, and his sister Ingerid was married to ship owner Sigval Bergesen the Younger.
[1] During the German occupation of Norway he was active in the clandestine intelligence organization XU.
[2] After being caught by the German soldiers while photographing near a torpedo base on Otrøya (June 1944) he managed to escape from the guards at Åndalsnes.