Eugen von Keyserling (22 March 1833 in Pockroy, Lithuania â 4 April 1889 in Dzierà ¼oniów, Silesia) was a Baltic-German arachnologist.
He studied in the University of Tartu.
He was the author of Die Spinnen Amerikas, and completed Die Arachniden Australiens (1871âÂÂ1883) on behalf of Ludwig Carl Christian Koch.