Leon Pierce Clark (1870 – 3 December 1933) was an American psychiatrist and psychoanalyst.
He was the president of the American Psychopathological Association (APPA) during 1923 and 1924.
[1][2] His pioneering work in psychobiography was published during the last four years of his life and was way ahead of his time.
In the last year of his life he published Lincoln: A Psycho-biography, another early work in this field.
This article about a United States psychiatrist is a stub.