Heinrich Kaan

Heinrich Kaan
Born8 February 1816
Died24 May 1893 (1893-05-25) (aged 77)

Heinrich Kaan (Russian: Генрих Каан; 8 February 1816 – 24 May 1893) was a 19th-century physician known for his seminal contributions to early sexology. Different sources identify him as Ruthenian (an ethnic group living in what is now Belarus and Ukraine) or as Russian. He was the personal physician to the Czar.