Carl Otto von Eicken (31 December 1873, Mülheim an der Ruhr – 29 June 1960, Heilbronn) was a German otorhinolaryngologist.
He studied medicine at the universities of Kiel, Geneva, Munich, Berlin, and Heidelberg, where he served as an assistant to surgeon Vincenz Czerny.
In 1922, he succeeded Gustav Killian (a former teacher) at the University of Berlin, where he maintained a professorship up until 1950.
[2][3] In May 1935 and November 1944, he removed a polyp from the left vocal cord of Adolf Hitler.
The eponymous "Eicken's method" is the facilitation of hypopharyngoscopy by means of forward traction on the cricoid cartilage by a laryngeal probe.