Ferdinand Karewski (5 November 1858 – 31 October 1923) was a German surgeon born in Stettin.
He studied medicine in Berlin, where one of his instructors was James Israel (1848–1926).
He worked as a surgeon at the Jewish Hospital (Jüdischen Krankenhaus) in Berlin as an assistant, and later as director of the policlinic.
He is remembered for experiments involving the effects of puerperal secretions.
This article about a German person in the field of medicine is a stub.