Onnen Grauhan, German cardiothoracic surgeon, educator. Recipient Young Investigator award, North America Society for Cardiac Pacing and Electrophysiology, 1991.
Grauhan, Onnen was born on November 8, 1959 in Berlin. Son of Hans Friedrich and Dagmar Grauhan.
Consultant surgeon German Heart Institute, Berlin, since 1986. Lecturer Humboldt University, Berlin.
Married Marlies Teebken, March 23, 1961. Children: Felix, Julia.