Carl August Graf Attems-Petzenstein (13 October 1868 in Graz, Austria – 19 April 1952 in Vienna) was an Austrian myriapodologist and invertebrate zoologist.

During his further studies he spent a lot of time examining the myriapod collection of the Viennese Hofmuseum (today's Naturhistorisches Museum).

The resulting publication was named "Myriopoden von Kreta, nebst Beiträgen zur allgemeinen Kenntnis einiger Gattungen."

Befriended scientist Karl Wilhelm Verhoeff dedicated him several genus (Attemsia Verh., Attemsocyphus Verh., Attemsodesmus R. F. Lawrence).

Due to the economic crisis during the late 1920s he had to retire from any bureaucratic activity and focussed exclusively on his myriapod studies.